foropensource

1Password Teams (Open Source Program)

Free 1Password Teams account for the project team, on all platforms (Mac, Windows, iOS, Android, Linux, browser), including developer features such as SSH key management, Git commit signing, CLI authentication with biometrics, and secrets management integration.

Eligibility: for the project; non-commercial only; project at least 1 months old; Team accounts only (not personal/family/business). Project must be at least 30 days old, active, under a permissive open source license, with the applicant as core contributor; no commercial backing (open source funding programs are OK). Open source meetup/event/conference organizers also eligible.

How to apply: Create a 1Password Teams account (14-day trial), invite at least one other Owner, then apply by opening an issue in the 1Password/1password-teams-open-source GitHub repo.

last verified 2026-07-06

Aikido AppSec platform (free for open source)

Free-forever AI code reviews and security checks for open source projects: AI code reviews with automated fix suggestions, PR security reviews, open source dependency scanning, IDE plugins, integrations (Jira, Linear, Drata, Vanta), reports and analytics, AI/bot protection, and attack surface monitoring.

Eligibility: for the project; Eligibility checked case by case; email hovhannes@aikido.dev to confirm your project qualifies. No credit card required.

How to apply: Sign in, create a workspace, then email hovhannes@aikido.dev for eligibility verification.

last verified 2026-07-06

Algolia for Open Source (search API credits)

200 units free per month on the standard pay-as-you-go plan, translating to 200,000 records and 200,000 search requests (worth roughly $180/month).

Eligibility: for the project; non-commercial only; public repo required; Open to licensed open source software, developer community projects, or legally-recognized non-profits with needs exceeding the standard free tier. Requires displaying a "Search by Algolia" logo linking to algolia.com (alternatives negotiable).

How to apply: Application form on the offer page; questions to community@algolia.com.

last verified 2026-07-06

AWS Cloud Credits for Open Source

AWS promotional credits (valid one year) for open source projects, typically used for upstream and performance testing, CI/CD, and storage of artifacts on AWS; usable on compute, storage, database, and developer tooling services. Over 200 projects funded since the 2019 launch.

Eligibility: for the project; OSI license required; Requires an active AWS account with valid payment method and no outstanding invoices. Preference for projects with maintainers from multiple entities or owned by foundations/non-profits; projects dominated by a single vendor or VC-funded are generally not eligible. Non-OSI-licensed projects in relevant domains encouraged to apply.

How to apply: Complete the AWS Open Source Credits application form and email it to awsopensourcecredits@amazon.com; applications reviewed monthly.

last verified 2026-07-06

Claude for Open Source (Claude Max 20x)

6 months of free Claude Max 20x subscription for eligible open source maintainers and core contributors; program accepts up to 10,000 contributors.

Eligibility: for the maintainer; public repo required; Primary maintainer or core team member of a public repository with 5,000+ GitHub stars or 1M+ monthly NPM downloads, with commits, releases, or PR reviews within the last 3 months. Maintainers of smaller but ecosystem-critical projects are invited to apply and explain their project.

How to apply: Application form on the program page; reviewed on a rolling basis, approved applicants get an activation link for Claude Max.

last verified 2026-07-07

Applitools Eyes visual AI testing (Open Source licenses)

Free Applitools licenses for open source projects ("providing free licenses to open source projects to help them deliver visually perfect user interfaces"). The page does not publish specific checkpoint/user limits.

Eligibility: for the project; Program is for open source maintainers and contributors; detailed qualification criteria are not published on the page — Applitools reviews requests via their sales contact form.

How to apply: Click "Get Free License" on the offer page (routes to applitools.com/contact/sales/open-source) and submit the contact form.

last verified 2026-07-06

AppSignal APM (sponsored open source account)

Free sponsored AppSignal account for open-source software and "for good" projects, with core monitoring features: error tracking, performance monitoring, host monitoring, anomaly detection, uptime monitoring and log management. No named tier or hard limits published on the page.

Eligibility: for the project; For open-source maintainers and software development volunteers / "for good" projects; no further published requirements.

How to apply: Email support@appsignal.com with the subject "Hi AppSignal, can I get a sponsored account?" to request a sponsored account.

last verified 2026-07-06

AppVeyor CI free plan for open source

Free CI/CD plan for open source: unlimited public projects, 1 concurrent job, 5 self-hosted jobs, 60-minute max build time, community support. Additionally, a 50% discount on all paid plans for open-source projects (and students/educational orgs) needing more compute or concurrency.

Eligibility: for the project; public repo required

How to apply: Sign up via "Get your FREE account" / "Get your OSS project on-board" on the pricing page.

last verified 2026-07-06

Araxis Merge

No-cost licenses for Araxis Merge (advanced 2/3-way file comparison, merging and folder synchronization tool) for contributors to open source projects.

Eligibility: for contributors; Page states "no-cost licences for contributors to Open Source projects"; detailed qualification criteria are not published and are handled on request.

How to apply: Contact Araxis via their discounts/contact page to request an open source contributor license.

last verified 2026-07-06

Argos visual testing (open source sponsorship)

Sponsored (free) visual regression testing beyond the standard free plan for qualifying open source projects; exact screenshot quota is agreed per-project when the free plan is insufficient.

Eligibility: for the project; non-commercial only; public repo required; Usage must stay within reasonable limits; project must display the Argos banner in its README and include a dofollow link to argos-ci.com with UTM tracking.

How to apply: Email contact@argos-ci.com confirming you meet the criteria, explaining why the free tier is insufficient, with your Argos team slug and a link to your repository.

last verified 2026-07-06

Atlassian Standard cloud products (Jira, Confluence, etc.)

No-cost Open Source licenses for Atlassian Standard cloud products (e.g. Jira, Confluence); the free offer applies to Standard plans only.

Eligibility: for the project; public repo required; Project must be public, with publicly accessible website and source repositories; you must create a cloud site with the desired Standard products and set up public access to it.

How to apply: Fill in the Open Source Project License Request form on the offer page; Atlassian follows up to validate and issue the license.

last verified 2026-07-06

Bitrise mobile CI/CD for open source

Free Developer Plan features for public open source projects: one dedicated concurrency per project, build times up to 45 minutes, unlimited builds, unlimited team members, public build pages/logs with automatic secret filtering.

Eligibility: for the project; public repo required; App must be added as "public" with an https:// repo URL; benefits attach to the project automatically.

How to apply: Log in to Bitrise, "Add new app", choose the "public" option, and connect the repo via HTTPS URL.

last verified 2026-07-06

Blacksmith GitHub Actions runners (OSS program)

Free use of Blacksmith's high-performance GitHub Actions runners and CI services for qualifying open source projects (program currently supports projects such as Celery, Ladybird, Zen and Limbo).

Eligibility: for the project; public repo required; Requires an actively maintained public repo, a permissive OSS license, and clear community usage; applications reviewed individually.

How to apply: Submit the OSS program application form on the Blacksmith pricing page.

last verified 2026-07-07

BrowserStack Open Source program (Live, Automate, Percy)

Free unlimited testing on desktop and mobile with Live, Automate, and Percy for 5 users and 5 parallel tests, across 3,000+ browsers and real devices; membership lasts for the duration of the project.

Eligibility: for the project; For open source projects; a project URL is required when applying.

How to apply: Sign up (or sign in) via the open source program page and provide the project URL during registration.

last verified 2026-07-06

BugSnag error monitoring (open source / non-profit plan)

Free standard plan for open source projects and non-profits: unlimited BugSnag usage with up to 15,000 events per month, up to 15 collaborators, and access to the Releases Dashboard and Session Tracking.

Eligibility: for the project; OSI license required; non-commercial only; Requires an open source license (or non-profit certificate); project must be non-commercial, non-political, non-offensive, non-religious, and must display the BugSnag logo with a backlink on its site.

How to apply: Create a free BugSnag account, then submit the request form on the offer page with your license, README/About page, account email, and proof of the BugSnag logo backlink.

last verified 2026-07-06

Buildkite Pipelines (free Pro plan for open source)

Free access to the Pro plan (normally $30 USD per active user per month) for open source projects; usage and inclusions are discussed with Buildkite on a case-by-case basis.

Eligibility: for the project; Must be an open source project; approval handled case-by-case by Buildkite.

How to apply: Contact Buildkite to discuss usage and inclusions; no self-service signup for the open source plan.

last verified 2026-07-06

Bump.sh Pro plan (API documentation)

Free access to the Bump.sh Pro plan (listed at $250/month) for open source projects — hosted API documentation and changelogs for OpenAPI/AsyncAPI definitions.

Eligibility: for the project; Project must be submitted for approval; page states only "Submit your project and get free access to Bump.sh Pro plan. We love open source."

How to apply: Email hello@bump.sh with your open source project details (link on the pricing page).

last verified 2026-07-06

hop.js (free open-source CDN)

Completely free CDN for open-source packages: serves millions of npm and cdnjs packages globally from bunny.net's 119+ datacenters, with all logging disabled (no tracking or profiling), malware scanning of files before distribution, and packages permanently mirrored to Bunny Storage. URL-compatible with cdnjs/jsDelivr (swap hostname to cdn.hopjs.net).

Eligibility: for the project; Serves publicly published open-source packages (npm and cdnjs repositories); no account or application needed to load packages.

How to apply: No application; reference files directly via https://cdn.hopjs.net/npm/<package>/<version>/<file> or browse packages at hopjs.bunny.net.

last verified 2026-07-07

Cachix Nix binary cache (open source tier)

Free Nix binary cache with a 5 GB storage limit (compressed) for open source projects, plus 20 Cachix Deploy agents.

Eligibility: for the project; Offer is stated as being for open source projects; page does not document a verification process or further criteria.

How to apply: Sign up on cachix.org; the free open source tier is provisioned on signup for OSS use.

last verified 2026-07-06

Cal.com OSS sponsorship (sponsored team plan)

Sponsored (free) access to Cal.com's paid team offering for open source projects (applicants provide their Cal.com team slug); exact plan tier is not specified on the page. In exchange the project must display a "Book us with Cal.com" banner in its footer and README with UTM-tagged links.

Eligibility: for the project; Project must be open source and non-commercial, or a commercial open source company with less than $2M ARR; must explain why the generic free tier / self-hosted open core is insufficient. Limited openings per month; requests reviewed monthly at Cal.com's discretion.

How to apply: Email peer@cal.com with project description, confirmation of criteria, why the free tier is insufficient, your Cal.com team slug, and a link to the repository.

last verified 2026-07-07

Advanced Installer (Architect license)

Free Advanced Installer Architect license (the highest tier) for developers of open source projects, for building Windows installers.

Eligibility: for the project; Must have an open source project; detailed criteria not published, reviewed per request.

How to apply: Email support@advancedinstaller.com with your name and details about your open source project; response in 1-2 business days.

last verified 2026-07-06

CatchJS JavaScript error tracking

Complimentary (free) CatchJS subscription for open source software projects; site states they give free subscriptions to open source projects out of appreciation for the OSS community. Exact plan tier not specified on the page.

Eligibility: for the project; Must be part of an open source software project; detailed criteria not published.

How to apply: Apply via the form at https://catchjs.com/Contact/OpenSource (linked "Click here to apply" on the homepage).

last verified 2026-07-06

CDN77 open-source sponsorship

Free CDN77 content delivery services for accepted open-source projects ("we offer our services for free to those who make the internet a better place"). Sponsored projects include Blender, GNOME, Let's Encrypt, Fedora, Manjaro and 20+ others.

Eligibility: for the project; Projects evaluated case-by-case on "added value, longevity, and relevance to our industry".

How to apply: Email juraj.kacaba@cdn77.com (Head of Client Implementations) describing the project in detail, why it matters, and how CDN77 can support it.

last verified 2026-07-07

Open Source Code Signing certificate

NOT free — a heavily discounted code signing certificate product for open source developers, priced "from EUR 69.00 gross" (far below standard code signing certificates). The set bundles the certificate with a cryptoCertum 3.7 IDPrime 940C mini cryptographic card and a card reader (ACS ACR39T-A1 or Omnikey 6121, depending on availability).

Eligibility: for the maintainer; Aimed at programmers/developers who share their software free to use or as an open source project; identity verification documents required, but no formal OSS eligibility criteria are published on the product page.

How to apply: Purchase the set from the Certum shop page and complete Certum's identity verification process (documents per their support pages).

last verified 2026-07-06

Chromatic visual testing (Open Source plan)

Free Chromatic for open source projects ("Free for open source. Building in the open? We'd love to support your project."). Specific snapshot limits for the OSS plan are not published on the pricing page.

Eligibility: for the project; public repo required; Page says "Contact us to see if you're eligible"; no explicit published criteria beyond building in the open.

How to apply: Contact Chromatic sales via the "Contact Sales" link on the pricing page to request open source eligibility.

last verified 2026-07-06

CircleCI open source plan

Free CI/CD credits for open source organizations: up to 400,000 credits per month for Linux, Arm, and Docker builds plus 30,000 credits per month for macOS and Windows builds, with enterprise-grade features such as SSH debugging, Docker layer caching, and self-hosted runners.

Eligibility: for the organization; public repo required

How to apply: Sign up for free on circleci.com with your open source project; credits apply to OSS builds.

last verified 2026-07-06

Cirun (open source plan)

Cirun service free forever for open source: unlimited public repositories and unlimited self-hosted GitHub Actions runners on all supported cloud providers, including ARM-based and GPU runners. Runners launch in your own cloud account, so underlying cloud compute costs are yours.

Eligibility: for the project; public repo required; Free plan covers public repositories only; private repos require a paid tier.

How to apply: Sign up via the Get Started flow on cirun.io and connect your repository and cloud account.

last verified 2026-07-07

Project Alexandria (open source program)

Recurring annual credits providing Cloudflare products free, tailored to project size: Pro/Business/Enterprise plan upgrades (Rules, Polish image optimization, WAF, Security Analytics, Page Shield), increased Workers and Pages request limits, expanded R2 object storage, advanced Zero Trust (Remote Browser Isolation, unlimited users), and a dedicated Discord channel.

Eligibility: for the project; OSI license required; non-commercial only; Must be an open source project with a recognized OSS license and operate solely on a non-profit basis and/or align with the program's mission.

How to apply: Apply via the Project Alexandria application form on the landing page.

last verified 2026-07-06

Cloudsmith open source repository hosting

At least 50 GB of artifact storage plus 200 GB/month of package delivery free across open source repositories (28+ package formats, global CDN edge distribution), including Pro-plan features such as geo/IP restrictions, access logs, and statistics. Exceptional projects can negotiate larger sponsored quotas.

Eligibility: for the project; Primary project must be free and open source; applicant must be a maintainer with significant control; no minor forks; artifacts served must be for the project itself (not dependencies only); visible attribution to Cloudsmith required; commercial entities should use paid plans.

How to apply: No advance approval needed: create an open source repository and follow the policy; Cloudsmith may verify eligibility later.

last verified 2026-07-06

Codacy Open Source plan

Free-forever Open Source plan for public repositories: cloud-hosted code quality and security scans, AI-powered code review, shared coding standards across 49 languages, coverage reports, and GitHub/Bitbucket/ GitLab integration. Pricing page labels Team-plan features "Free forever for open-source projects."

Eligibility: for the project; public repo required; Applies when working exclusively on public projects.

How to apply: Sign up with your Git provider (no credit card required); public repositories stay free on the Open Source plan.

last verified 2026-07-06

Codeac automated code review (open source plan)

Forever-free plan for open source with unlimited public repositories on Codeac's automated code quality / SAST analysis platform; private repositories require the paid Pro plan.

Eligibility: for the project; public repo required; Applies to public repositories; no separate approval process published.

How to apply: Sign up at app.codeac.io and connect public repositories; no application needed.

last verified 2026-07-06

CodeAnt AI code review and security platform (100% off for open source)

CodeAnt AI's AI code review, SAST security scanning, and code quality platform at 100% off (free) for open source projects.

Eligibility: for the project; Pricing page states "100% OFF FOR OPEN SOURCE" but publishes no detailed eligibility criteria; granted case-by-case via email.

How to apply: Email amartya@codeant.ai with subject "Open Source Work" (link on the pricing page).

last verified 2026-07-07

Codeberg (Forgejo git hosting, Pages, CI/CD, Weblate)

Free Git repository hosting on Forgejo, static site hosting via Codeberg Pages, CI/CD (Woodpecker-based), and a Weblate translation instance, run by a Berlin-based non-profit funded by membership dues and donations (629k+ projects hosted).

Eligibility: for the project; Services are explicitly for free and open-source projects; content must comply with Codeberg's FOSS-focused terms of use.

How to apply: Register an account directly at codeberg.org; no approval process for standard use.

last verified 2026-07-06

Codecov (code coverage for open source)

Free code coverage analysis for open source projects, including coverage reporting, PR comments with coverage information delivered directly on pull requests, and status checks to block pull requests that fail to meet coverage targets. Page states Codecov "will always be free for open source projects."

Eligibility: for the project; public repo required; Works with GitHub, GitLab, Bitbucket, and Sentry accounts; an org admin must approve the org.

How to apply: Sign up free at codecov.io/login/ by connecting a GitHub/GitLab/Bitbucket account; no separate application.

last verified 2026-07-06

CodeFactor Community plan

Free Community plan ($0/month) with unlimited public repositories and unlimited users for automated code quality / static analysis; private repositories are not included (0 private repos on the free plan).

Eligibility: for the project; public repo required

How to apply: Sign up on codefactor.io and connect your public repositories; no separate application.

last verified 2026-07-06

CodeRabbit AI code review (Open Source plan)

Free AI code reviews forever for public repositories (rate-limited Pro features), including PR summarization and reviews in IDE/CLI, with no additional setup required.

Eligibility: for the project; public repo required

How to apply: Sign up for CodeRabbit with GitHub or GitLab and install it on a public repository; the free open source plan applies automatically.

last verified 2026-07-06

CodeScene for Open Source (community edition)

Free CodeScene community edition for open source projects: automated code reviews via PR integration, technical debt management with Hotspots, Code Health measurement, knowledge distribution visualization, PDF analysis reports, virtual code review, and customizable Code Health rules.

Eligibility: for the project; Pricing page states "CodeScene is free for open-source projects"; no further published criteria.

How to apply: Use the "Get community edition" flow linked from codescene.com/pricing.

last verified 2026-07-06

CodSpeed continuous benchmarking (Free plan for open source)

Free continuous performance tracking in CI with unlimited users for open-source projects (private repos capped at 5 users), unlimited repository runs, 600 macro runner minutes/month, 3-month history, pull-request performance reports, and CPU/wall-time instruments.

Eligibility: for the project; OSI license required; public repo required; Project must be publicly accessible with an OSI-approved license.

How to apply: Use the Free plan directly; for extra macro runner minutes email support@codspeed.io with project details.

last verified 2026-07-06

Concord data privacy / consent compliance platform (Essentials plan)

Essentials plan free for life for verifiable open source projects: data privacy compliance management and consent/trust tools for the project's site.

Eligibility: for the project; public repo required; Must be a verifiable open source project; application asks for a link to a verifiable open source repo.

How to apply: Fill in the form on the open source page with name, email, website URL, and a verifiable open source repo link.

last verified 2026-07-06

Convex Open Source Program (free Convex Pro)

Free Convex Pro for one team with the built-in monthly Pro resource limits, plus swag (stickers, shirts, gear) and direct access to the Convex team and developer community.

Eligibility: for the project; Project must be actively maintained and fully open source, be built with Convex or planning to integrate it, and support the developer ecosystem (tools, libraries, or resources). Funded companies and startups are directed to the separate Convex for Startups program. Linking back to Convex is encouraged but not required.

How to apply: Apply at convex.dev/open-source-program/apply; applications reviewed on a rolling basis with a response within 60 days.

last verified 2026-07-07

Cossistant Pro plan (OSS friends Program)

Cossistant Pro plan (support/chat widget) free with included credits, plus a dofollow listing on their featured projects page, a guest blog post opportunity, and integration/customization help from the team.

Eligibility: for the project; non-commercial only; public repo required; Requires a public GitHub repo with recent activity and 100+ stars; project must not be profitable yet. In return, must keep Cossistant branding in the widget and display a linked OSS badge in the README.

How to apply: Apply via the "Join the OSS friends Program" button on the page.

last verified 2026-07-07

Coveralls test coverage

Free test coverage tracking, history, and statistics for open source repositories. Pricing page states "Coveralls will always be free for open source."

Eligibility: for the project; public repo required

How to apply: Sign up via the standard registration flow on coveralls.io and add your open source repository; no separate application.

last verified 2026-07-06

Coverity Scan static analysis

Free static analysis for open source projects in Java, C/C++, C#, JavaScript, Ruby, or Python, analyzing every line of code and potential execution path, with defect root-cause explanations, GitHub/Travis CI integration, and a web interface for triaging defects. Build submission frequency limits vary by project size.

Eligibility: for the project; public repo required; Must be an open source project; ~9,700 OSS projects use the service.

How to apply: Sign up and register your project on scan.coverity.com, upload your build, then view and fix defects in the web interface.

last verified 2026-07-06

CppDepend Pro (Open Source Contributor License)

Free CppDepend Pro license (C/C++ static analysis: code quality metrics, dependency analysis, code review automation, reports) for active open source contributors; reported as a 1-year license.

Eligibility: for contributors; project at least 3 months old; Applicant must be a project lead or active committer with at least three months of contributions and active community engagement. Requires adding the CppDepend logo with a link on the project page.

How to apply: Add the CppDepend logo/link to the project page, then email support@cppdepend.com with your name and project URL.

last verified 2026-07-07

Crowdin (Open Source plan)

Crowdin localization management platform "completely free of charge for open-source projects", including access to beta features, the Global Translation Memory, and Neural Machine Translator access.

Eligibility: for the project; OSI license required; non-commercial only; public repo required; project at least 3 months old; Must be the project lead; project needs an active collaborator community, regularly updated website news, and regular releases. Applicants agree to join the beta group and contribute translations to the shared translation memory.

How to apply: Create a translation project in Crowdin, then submit the request form on the offer page (project name, license, website, description).

last verified 2026-07-06

cubic AI code review (free for open source)

cubic's AI code review is 100% free for open source teams: connect it to a public repository to get unlimited AI reviews on pull requests, with codebase-wide, context-aware analysis.

Eligibility: for the project; public repo required

How to apply: No application; connect cubic to a public repository via the GitHub integration.

last verified 2026-07-07

Cypress Cloud Open Source Plan

Free Cypress Cloud plan for qualifying open source projects with 5 free user seats, 100,000 test results per month, parallelization with load balancing, and access to integrations.

Eligibility: for the organization; OSI license required; non-commercial only; public repo required; All projects in the Cypress Cloud organization must be public and non-commercial; organization must have recorded at least 500 tests.

How to apply: In the Cypress Cloud dashboard go to Billing & Usage, click Upgrade, select "Apply for an open source plan", and submit the application form; the Cypress team reviews and confirms by email.

last verified 2026-07-06

Datadog observability platform (Open Source Projects program)

Free Datadog account for the project's own infrastructure: cloud observability and security platform including infrastructure and APM monitoring, 1,000+ integrations, code analysis and profiling, and database/user activity monitoring. Host counts and telemetry event volumes may be limited.

Eligibility: for the project; OSI license required; non-commercial only; project at least 12 months old; Minimum 5 regular contributors; at least 2 maintainers must work for different companies. Monitored infrastructure must directly support the project itself (monitoring third-party instances of the project is out of scope). Projects are asked to tell the community how they use Datadog.

How to apply: Application form on the partner program page; Datadog evaluates submissions case by case.

last verified 2026-07-06

DeepScan static analysis (free open source plan)

Free static analysis for unlimited public JavaScript/TypeScript projects, with automatic GitHub synchronization, code quality grading, and three months of historical trend data.

Eligibility: for the project; public repo required

How to apply: Sign up with GitHub on deepscan.io and add public repositories; the free open source plan applies automatically.

last verified 2026-07-06

DeepSource static analysis (OSS plan)

Free plan for open source: unlimited public repositories, unlimited team members, 1,000 pull requests reviewed per month, static analysis, SAST, IaC scanning, code coverage, secrets detection, and 1,000 automated code formatting runs per month (AI Review/Autofix are pay-as-you-go).

Eligibility: for the project; public repo required; "Free for open-source projects, and always will be"; no formal vetting described beyond repositories being public open source.

How to apply: Sign up on deepsource.com and connect public repositories; no separate application.

last verified 2026-07-06

DeployHQ open source discount

NOT free — a 50% discount on DeployHQ deployment automation plans for open source projects (also students and non-profits). A separate generic free tier (3 projects, unlimited deployments) is available to everyone.

Eligibility: for the project; Open source projects, students, and non-profits qualify; approval by DeployHQ required.

How to apply: Sign up, then contact/email DeployHQ with details of your open source project to request the discount.

last verified 2026-07-06

DigitalOcean Credits for Open Source

Grants of DigitalOcean infrastructure credits for a project's development, infrastructure, and testing needs, usable on Droplets, managed databases, App Platform, and managed Kubernetes. Grant amounts vary by project tier; each grant lasts one year.

Eligibility: for the project; OSI license required; Project must meet DigitalOcean's Grant Tier Criteria; a Code of Conduct is encouraged but not strictly required.

How to apply: Application form on the Credits for Open Source page; review takes 7-10 business days, notification by email.

last verified 2026-07-06

Discourse hosted forum (probono plan for open source)

Free managed Discourse forum hosting on the probono plan: unlimited members and chat, unlimited public and private categories, unlimited tags, custom groups, email support, custom and community themes, custom domain, API and webhook access, and 5 staff seats. Hosted on a .discourse.group subdomain unless approved for a custom domain.

Eligibility: for the project; Aimed at popular open source projects; application form asks for project/repository link and contributor count (10+/100+/1000+/10000+). Detailed criteria in the "Free Hosting for Open Source v2" blog post.

How to apply: Application form on the offer page (email, community name, project link, description, contributor count, desired URL); agree to Discourse Self-Serve Hosting Terms.

last verified 2026-07-06

Docker-Sponsored Open Source (Docker Hub + Team subscription)

Verified DSOS badge on Docker Hub, removal of Docker Hub rate limits for the project's public images (for maintainers and everyone pulling them), and one-year free Docker Team subscriptions for core contributors including Docker Desktop, 15 concurrent autobuilds, unlimited vulnerability scans, RBAC, audit logs, unlimited teams, and scoped tokens.

Eligibility: for the project; non-commercial only; public repo required; Project must be in public Docker Hub repos with publicly accessible source meeting the OSI open source definition; images or dependencies updated within the past 6 months; no commercialization pathway (donations acceptable).

How to apply: Application form (Airtable) linked from the program page.

last verified 2026-07-06

JProfiler (open source license)

Free JProfiler (Java profiler) licenses covering a project's core committers, granted in exchange for a link to the JProfiler site (preferably a text link containing "Java profiler", no nofollow).

Eligibility: for contributors; non-commercial only; Non-profit open source projects with an established website and a released product.

How to apply: Online form on the offer page (project name, website URL, contact, number of developers); processing up to 24 hours, license sent by email.

last verified 2026-07-06

install4j (open source license)

Free install4j (multi-platform Java installer builder) license for the project's developers, granted in exchange for a link to the install4j site (preferably a text link containing "multi-platform installer builder", no nofollow).

Eligibility: for contributors; non-commercial only; Non-profit open source projects with an established website and a released product.

How to apply: Online form on the offer page (project name, website URL, contact, max number of developers); processing up to 24 hours, license sent by email.

last verified 2026-07-06

Ellipsis AI code review (free for public repos)

Ellipsis automated AI code review on GitHub pull requests, completely free for public GitHub repositories with no stated usage limits (private repos instead get a $10/month free usage tier then usage-based billing).

Eligibility: for the project; public repo required

How to apply: No application; install the Ellipsis GitHub app - free access is granted automatically based on the repository being public.

last verified 2026-07-07

elmah.io error logging and uptime monitoring (Small Business subscription)

Free Small Business subscription to elmah.io (error logging and uptime monitoring for .NET) to monitor your open source project. Subscription may only be used for the open source project itself.

Eligibility: for the project; non-commercial only; public repo required; Project must be publicly available on GitHub, Bitbucket, or similar and be open source. Requires a backlink to elmah.io from the project's landing page or repository. Subscription restricted to monitoring that project only.

How to apply: Get in contact with elmah.io (via site contact) to redeem the free subscription, per the open source sponsorship page.

last verified 2026-07-06

Size Analysis (free for open source)

Emerge's mobile app Size Analysis free for non-commercial open source projects: automated size insights, size tracking on every pull request, public shareable build links, dynamic README badges, and up to 5 maintainer accounts.

Eligibility: for the project; non-commercial only; public repo required; Valid only for non-commercial open source projects.

How to apply: Submit your repository via the Google Form linked on the open-source page to receive setup instructions.

last verified 2026-07-07

Fast Forward (free CDN and edge services)

Free Fastly services (CDN, edge delivery and related services) for eligible open source projects and the nonprofits that support them. Program has backed major ecosystems (Python, Rust, Ruby, Apache projects) since 2014; exact quotas are agreed after application.

Eligibility: for the project; OSI license required; Projects should be open (open source license, collaborative values), community-centered (inclusive to contributors), and built on trust (security-minded). Nonprofits supporting OSS also eligible.

How to apply: Application form on the Fast Forward page describing how the project meets the criteria; Fastly follows up about technical needs.

last verified 2026-07-06

Fibery (work & knowledge management platform)

Fibery is 100% free for all open-source projects (full product at no cost, not a discount). Fibery also offers a separate 50% permanent discount for educational and nonprofit organizations.

Eligibility: for the project; Page states the offer applies to open-source projects; no detailed criteria (license, age, activity) are published. Applicants who do not fit standard categories are invited to contact Fibery directly.

How to apply: Submit the application form for open-source projects linked from the special-pricing page ("just let us know").

last verified 2026-07-07

Gandi Supports (domains/hosting support for community projects)

Case-by-case free support — the page states Gandi helps projects with "financial, technical, administrative, or moral" assistance (historically free domain names and hosting). No fixed tiers or quantities are published; supported projects listed include Debian, Ubuntu, GNOME, Framasoft, and Creative Commons.

Eligibility: for the project; Not exclusively open source — program targets "concrete, open, alternative" projects offering an alternative to dominant commercial suppliers; in practice most listed beneficiaries are open source/community projects.

How to apply: Email non-profit@gandi.net with your project proposal.

last verified 2026-07-06

Sponsored site plan (open source docs)

Free branded documentation site for open source projects on the "Sponsored site" plan: custom domain, logo, theme and fonts, scaled docs with sections and groups, AI Assistant, advanced site insights, private share links, and search indexing control. Sites can optionally run ethical ads to fund the project; GitBook takes none of the ad revenue.

Eligibility: for the project; Plan is described as designed for open source users; no further criteria stated on the page.

How to apply: Contact GitBook support via the button next to the Sponsored plan on the offer page.

last verified 2026-07-06

GitHub Copilot Pro (free for OSS maintainers)

Free GitHub Copilot Pro subscription (the paid individual tier) for maintainers of popular open source repositories.

Eligibility: for the maintainer; public repo required; Must be a maintainer of a "popular" open source repository as determined by GitHub; no public threshold is published. Eligibility is re-evaluated by GitHub every month.

How to apply: No application form: check eligibility under profile menu > Copilot settings; access is granted automatically if you qualify.

last verified 2026-07-07

GitHub Actions, Packages and paid-tier features on public repositories

GitHub Actions CI/CD minutes and Packages storage are free for public repositories on all plans (private-repo quotas like 2,000 minutes/500MB on Free do not apply), and paid-tier features such as repository rules, code owners, draft pull requests, and multiple pull request assignees are available free on public repositories.

Eligibility: for the project; public repo required

How to apply: No application; benefits apply automatically to public repositories.

last verified 2026-07-06

GitLab for Open Source (GitLab Ultimate)

Free GitLab Ultimate features (SaaS or self-managed) plus 50,000 compute minutes calculated at a program-specific cost factor. Technical support is not included.

Eligibility: for the organization; OSI license required; non-commercial only; public repo required; All projects in the namespace must be OSI-licensed; the GitLab group and source code must be publicly visible. Donations allowed, but no selling services, paid enhancements, or add-ons.

How to apply: Create a GitLab account, then complete the application form on the Customers Portal; a coupon code and provisioning instructions arrive by email.

last verified 2026-07-06

Ona for Open Source (cloud dev environments + AI agents)

Up to $200/month in free Ona credits for open source maintainers and contributors, usable for Ona's cloud development environments and AI software engineering agents. Successor to the former "Gitpod for Open Source" free plan after the Gitpod-to-Ona rebrand.

Eligibility: for the maintainer; Open to maintainers and contributors of open source projects; detailed criteria not published on the announcement, decided at application review.

How to apply: Apply via the signup form at ona.com/open-source.

last verified 2026-07-06

Free SSL certificates for open source projects

Free GlobalSign SSL certificates for qualifying open source projects, helping users verify they are receiving unmodified authentic software or source code.

Eligibility: for the project; OSI license required; non-commercial only; Must pass GlobalSign vetting, achieve an "A" rating on GlobalSign's SSL Checker, and accept the standard Subscriber Agreement.

How to apply: Fill out the contact form on the offer page; GlobalSign's team contacts you to discuss the project.

last verified 2026-07-06

Develocity (sponsored OSS instances)

Free hosted Develocity instances for key open source projects, including Build Scan, Build Cache, Failure Analytics, and Performance Insights for build/test acceleration and observability. Sponsored recipients include Spring, the Apache Software Foundation, Kotlin, Micronaut, Quarkus, and JUnit.

Eligibility: for the project; Aimed at "key" established open source projects, mostly in the JVM ecosystem; no published eligibility rubric.

How to apply: No public application form; contact Gradle/Develocity directly via their contact channels.

last verified 2026-07-06

Graphite for Open Source (Standard plan free)

Full Graphite Standard plan free for open source projects: unlimited stacking (stacked PRs), insights, automations, and the stack-aware merge queue, with no limit on the number of contributors.

Eligibility: for the organization; public repo required; OSS projects with 10 or fewer GitHub org members are auto-detected and activated on signup; larger projects apply directly and are reviewed individually (program targets projects that could not otherwise afford a plan). Venture-backed "open core" companies with more than 10 members are excluded and directed to the standard trial.

How to apply: Small projects: sign up for a Graphite Standard annual plan and eligibility is auto-detected. Larger projects: contact Graphite with your GitHub org, website, and project description.

last verified 2026-07-07

Greptile AI Code Review (Open Source Program)

Greptile's codebase-aware AI code review on pull requests, free (100% off) for qualifying open source projects.

Eligibility: for the project; non-commercial only; Non-commercial projects with MIT or Apache licenses are eligible, per the program page.

How to apply: Sign up via the open source program page (greptile.com/open-source); no separate application form is published.

last verified 2026-07-07

HackerOne Community Edition

Free vulnerability coordination / bug bounty platform for open source projects: security page with disclosure policy, report management with discussion tools, intelligent duplicate detection, hacker reputation and private invites, API access, and analytics dashboards. Only cost is a 5% payment processing fee if you choose to pay bounties.

Eligibility: for the project; OSI license required; non-commercial only; project at least 3 months old; Must add a SECURITY.md in the project root, link to the HackerOne profile from the project website, and respond to new reports within a week.

How to apply: Application form on the page (project name, website, motivation); reviews typically complete within one business week.

last verified 2026-07-06

Healthchecks.io Business plan (cron job monitoring)

Business plan free of charge for open-source projects and nonprofits: monitor 100 jobs, 1,000 log entries per job, 50 SMS/WhatsApp credits, 20 phone call credits, and email support (vs. the generic free tier's 20 jobs and no credits).

Eligibility: for the project; Open-source projects and nonprofits qualify; no further criteria stated.

How to apply: Contact Healthchecks.io (via the contact/about page) to get set up.

last verified 2026-07-06

Sonargraph (free open source license)

Free Sonargraph license for qualifying open source projects (architecture and static code analysis for Java, Kotlin, C#, Python 3, Go, TypeScript, C/C++); the free license also covers Sonargraph-Build for use in CI (e.g. breaking the build on metric threshold violations).

Eligibility: for the project; Open source project must not be controlled by a for-profit company or a government entity.

How to apply: Contact sales@hello2morrow.com to request the free open source license.

last verified 2026-07-07

Helpmonks Hosted Edition (shared inbox)

Helpmonks Hosted Edition (SaaS shared team inbox / email management) free of charge for open source projects; nonprofits instead get a discount of up to 30% on all plans.

Eligibility: for the project; non-commercial only; public repo required; Code must be publicly available (GitHub, Bitbucket, etc.) with proof the project is actively used; commercial open source projects are not accepted. Requests are evaluated individually.

How to apply: Create a free Helpmonks account, then email hi@helpmonks.com with the account details and information about the project and its online presence.

last verified 2026-07-06

Open Source Software Credit Program

A set monthly Heroku credit allocation for 12 months, typically $25 to $500 USD/month (discretionary), usable on Heroku products such as Dynos, Postgres, and Key-Value Store; not valid for third-party add-ons. Unused monthly credits do not roll over.

Eligibility: for the maintainer; Applicant must maintain an open source project running (or intending to run) on Heroku, have an active Heroku account verified with a credit/debit card, use a standard open source license, and have a Code of Conduct. Salesforce employees and government officials excluded.

How to apply: Application form on the program page; applications reviewed once per month, approvals within ten business days.

last verified 2026-07-06

Hound automated style review

Free automated code style review on GitHub pull requests for public repositories ("Hound is free for public repos!"), with comments on style issues, support for 12+ languages (JavaScript, Ruby, Python, Swift, PHP, Go, TypeScript, etc.) and customizable style guides. Private repos start at $29/month.

Eligibility: for the project; public repo required

How to apply: Click "Get started with GitHub" and sign in with a GitHub account; no separate application.

last verified 2026-07-06

Icons8 graphics for open source projects

Free Icons8 graphics for established open source projects — the license page states "Established open-source projects can get our graphics for free. For you, we'll open-source the needed resources." (Distinct from the generic free tier, which requires a visible link/attribution to icons8.com everywhere assets are used.)

Eligibility: for the project; Must be an "established" open source project; no further criteria published.

How to apply: Contact the Icons8 support team via the "Contact us" link on the license page.

last verified 2026-07-06

Imgbot automated image optimization (GitHub App)

Free "Open Source" plan: unlimited public repos, unlimited users. Imgbot losslessly compresses images in your repository and opens automated pull requests with the optimized files.

Eligibility: for the project; public repo required; Free plan covers public repositories only; private repos require a paid plan.

How to apply: Install the Imgbot GitHub App from the GitHub Marketplace listing and select the free open source plan for public repos.

last verified 2026-07-06

All Products Pack (OSS development licenses)

Free licenses for the full JetBrains product lineup (IntelliJ IDEA Ultimate, PyCharm, WebStorm, etc.) for a project's core contributors, for use on the open source project.

Eligibility: for contributors; OSI license required; non-commercial only; public repo required; project at least 3 months old; Project may not offer paid sponsorship, receive commercial funding, provide paid support/consulting/training, or distribute paid versions; regular releases required; applicant must be a project lead or regular committer.

How to apply: Application form on the offer page; project lead applies on behalf of contributors.

last verified 2026-07-06

TeamCity (Open Source license)

Free TeamCity Professional Server open source license: unlimited servers with up to 100 build configurations per server and 3 build agents per server at no cost, with free upgrades during the license term.

Eligibility: for the project; OSI license required; non-commercial only; Restricted to development of non-commercial open source projects meeting the Open Source Definition; licensee must be an open source development group.

How to apply: Request via the JetBrains open source program page (team tool licenses, including TeamCity, are requested alongside All Products Pack subscriptions).

last verified 2026-07-06

YouTrack (OSS team license)

Free YouTrack issue tracking license for the open source team, requested through the JetBrains open source program (program covers team tools including YouTrack and TeamCity).

Eligibility: for the project; OSI license required; non-commercial only; project at least 3 months old; Same program terms as All Products Pack: no paid sponsorship, commercial funding, paid support, or paid versions. Note YouTrack also has a generic free tier for up to 10 users for anyone.

How to apply: Request team tool licenses via the open source program application form.

last verified 2026-07-06

Pro plan (open source sponsorship program)

Free Pro tier for qualifying open source projects: 50,000 transactional emails per month via SMTP relay and HTTP API, unlimited verified domains, premium IP pool, inbound routing/webhooks, and delivery analytics; higher volume available on request.

Eligibility: for the project; OSI license required; non-commercial only; public repo required; Public repo on GitHub/GitLab/Codeberg or similar; maintainership verified via a project-linked email address; for the project itself, not commercial products.

How to apply: Submit repository URL, license type, sending use case and estimated monthly volume via the contact form on the offer page; review takes about two business days.

last verified 2026-07-07

jsDelivr public CDN for open source packages

Free production CDN for open source packages published on npm or GitHub: four CDN and three DNS providers with 540+ points of presence, HTTP/3, brotli compression, on-demand minification, file combining, version aliasing, usage statistics, and a public API. No stated usage limits for eligible open source packages; serves 150 billion requests/month.

Eligibility: for the project; public repo required; Package must be published on npm or a public GitHub repository; no application, works instantly.

How to apply: No application needed; load files directly via cdn.jsdelivr.net URLs for any npm or GitHub package.

last verified 2026-07-06

KaiMail email forwarding for custom domains

Free program for open source projects and volunteer communities to use their own domain for email: custom-domain addresses (e.g. contact@, sponsors@, security@) with forwarding, DKIM/ARC signing, no mail server, no per-seat fees.

Eligibility: for the project; Open source projects and volunteer communities; detailed criteria not published, set up per request.

How to apply: Contact KaiMail and tell them about your project or community ("tell us about it and we will get you set up").

last verified 2026-07-06

Keploy OSS Sponsorship (AI test generation)

Free AI-powered test generation for sponsored open source projects: automated tests from API traffic and code changes, API schema coverage analysis, PR-ready test suggestions, CI credits monthly, and placement in Keploy's OSS showcase. Tiers: Spark (5 seats, ~$9.5K/yr value), Orbit (10 seats, ~$19K), Constellation (20 seats, ~$38K).

Eligibility: for the project; OSI license required; public repo required; Must be willing to enable AI-generated tests on public PRs and agree to be featured in Keploy's OSS showcase; application-based, acceptance not guaranteed.

How to apply: Submit project details via the application form on the OSS sponsorship page; applications reviewed on a rolling basis, selected projects are tier-matched during onboarding.

last verified 2026-07-06

Open Source CDN account

Free KeyCDN account for open source projects to accelerate delivery of "static assets on your website or a link to an open source library you want to accelerate", including global network coverage, instant cache purging via API or dashboard, and delivery analytics. Past supported projects include Meteor, webpack, and FreeNAS.

Eligibility: for the project; Must currently maintain an open source project needing CDN services.

How to apply: Contact KeyCDN via the offer page ("Please contact us to get started").

last verified 2026-07-07

Free artifact distribution for open source projects

Free artifact distribution (software distribution and automatic updates via Keygen Dist) for popular open source projects; the page cites Tabby as an example project given free distribution and auto-upgrades.

Eligibility: for the project; Project must be open source and "popular"; no further criteria published, granted case-by-case.

How to apply: Contact Keygen by email (address on the open-source page); no formal application form.

last verified 2026-07-07

Localizely translation management platform

Localizely (cloud translation/localization management platform) completely free for open-source projects; pricing page states "If you have an open-source project or initiative that would benefit from our cloud localization platform, we'd like to help."

Eligibility: for the project; Must be an open-source project or initiative; detailed criteria not published, reviewed per application.

How to apply: Submit the application form at https://localizely.com/open-source-project-request/ (linked from the pricing page).

last verified 2026-07-06

Open Source Program (hosted Mac mini)

Free access to a cloud-hosted, bare-metal Mac mini (Apple silicon available) for building and testing on macOS, typically used as a remote CI build agent. Over 100 open source projects sponsored, including Homebrew and Swift Package Index.

Eligibility: for the project; project at least 3 months old; Applicant must be a project lead or regular contributor not paid to work on the project; project must not get the majority of its funding from commercial organizations; software must be free to users (paid support/consulting/training allowed); regular builds released.

How to apply: Join the waitlist on the program page; openings granted as they become available.

last verified 2026-07-06

Hosted Mailman 3 mailing lists

Free hosting of GNU Mailman 3 mailing lists on the mailman3.com SaaS for open source software projects ("We love open-source software and provide free hosting for OSS mailing lists").

Eligibility: for the project; Must be an open source software project; no further published criteria — applications are reviewed per request.

How to apply: Email hostmaster@mailman3.com with the project URL and approximate monthly email volume.

last verified 2026-07-06

Mergify (merge queue & CI automation)

Full product at zero cost for open source projects ("Full product, zero cost. For open source and teams up to 5."): CI Insights, Test Insights, Merge Queue, Merge Protections, and Stacks, plus email support.

Eligibility: for the project; Free plan covers open source projects (private repositories are limited to 5 users); the pricing page does not detail what qualifies a project as open source.

How to apply: Sign up at dashboard.mergify.com via the Get started button; no application form.

last verified 2026-07-07

Meterian dependency vulnerability scanning (free for open source)

Free plan with unlimited open-source projects (plus 1 closed-source project), 10 analyses per day, and HTML reports; public GitHub repos on the free plan are rescanned roughly every 2.5 hours.

Eligibility: for the project; public repo required; Analyses are free for open source projects as long as the client detects the project as open source; classification is automatic.

How to apply: Sign in to the Meterian dashboard and scan your open source repositories; no application needed.

last verified 2026-07-06

Mintlify Pro (OSS Program)

Mintlify Pro plan free forever for qualifying open source projects: hosted docs with custom domain and branding, advanced analytics, and interactive API playground with live testing (Pro normally $250/month).

Eligibility: for the project; OSI license required; non-commercial only; Project must use a recognized OSS license (MIT, Apache 2.0, GPL, etc.), must not be venture-backed or revenue-funded, and must not be owned or primarily maintained by a for-profit company.

How to apply: Application form (Typeform) linked from the OSS program page.

last verified 2026-07-07

MyGet Open Source subscription (package hosting)

Free MyGet subscription for open source projects: public and community feeds, 1 GB storage, packages up to 100 MB each, Build Services and Symbols Services, and the option to promote feeds in the gallery. Higher storage can be requested in the application.

Eligibility: for the project; OSI license required; non-commercial only; project at least 3 months old; Applicant must be a project lead or active contributor (commit within the last month); project must comply with the OSD, not be backed by commercial entities or paid contributors, and not sell services or paid versions.

How to apply: Web form on the offer page with name, email, project details, license, project age, and your role.

last verified 2026-07-06

Navicat (Open Source Project License)

Complimentary Navicat license (database GUI/administration tools) for approved open source projects; sponsored projects display a Navicat logo on their website.

Eligibility: for the maintainer; OSI license required; public repo required; project at least 3 months old; Applicant must be a project leader or committer with 3+ months on the project; project needs a publicly accessible website, regular updates, public source code, and must be an accredited non-profit organization.

How to apply: Application form on the offer page with project details (name, URL, description, developer count) and contact info; reviewed within 2 business days.

last verified 2026-07-06

Neon Open Source Program (Postgres platform credits)

Up to $5,000 per year in Neon platform credits for open source projects that use Postgres, plus $20 per referred customer (unlimited) and promotional support (blog features, social media, case studies, co-marketing).

Eligibility: for the project; OSI license required; Software must be open source under a recognized license and self-hostable, must use Postgres as a component or extension, and must document how users can integrate it with Neon. Existing Neon usage not required, but integrated projects get priority.

How to apply: Application form on the program page; response typically within 1-3 business days.

last verified 2026-07-07

Netlify Open Source plan

Free Open Source plan with 10,000 credits per month, free production deploys, unlimited team members; sites remain active even if credits run out, and additional credits can be purchased at Pro plan rates.

Eligibility: for the project; OSI license required; non-commercial only; OSI-approved license (or certain Creative Commons licenses with attribution), a code of conduct featured prominently in the repo or docs, and a "powered by Netlify" link/badge on the site's main page. Netlify monitors compliance and may downgrade violating plans.

How to apply: Fill out the application form linked from the open source policy page for review.

last verified 2026-07-06

Nx Cloud (OSS plan)

Free Nx Cloud plan for open source projects: fully managed remote caching, distributed task execution and unlimited CI pipeline executions, plus free full-featured Nx Powerpack licenses for OSS maintainers.

Eligibility: for the project; public repo required; Aimed at open source repositories using Nx; maintainers wanting a Powerpack license can also reach out via powerpack-support@nrwl.io.

How to apply: Apply via the OSS plan application linked from the Nx pricing page FAQ ("Is there a plan for open source projects?"); confirm the Powerpack question in the form if you also want a Powerpack license.

last verified 2026-07-07

Codex for Open Source (ChatGPT Pro subscription)

6 months of free ChatGPT Pro with Codex access for open source maintainers, plus conditional access to Codex Security for repositories needing deeper security analysis.

Eligibility: for the maintainer; public repo required; For core maintainers of widely used public projects (press coverage cites roughly 1,000+ GitHub stars); projects that do not fit the criteria but play an important ecosystem role are invited to apply and explain why. You can apply for yourself or nominate another maintainer.

How to apply: Application form at openai.com/form/codex-for-oss/; reviewed on a rolling basis, Codex Security access reviewed case by case.

last verified 2026-07-07

Codex Open Source Fund (API credit grants)

One-time API credit grants of up to $25,000 per project from a $1 million fund, for open source projects integrating Codex CLI or OpenAI models (e.g. Codex-powered PR review or release automation).

Eligibility: for the project; public repo required; Separate from the 6-month ChatGPT Pro subscription benefit; grants are one-time.

How to apply: Application form at openai.com/form/codex-open-source-fund/.

last verified 2026-07-07

OpenPanel analytics (free for open source)

Free web/product analytics for open source projects with up to 2.5 million events per month, full feature access (funnels, retention, custom dashboards, real-time analytics), unlimited team members, and priority support.

Eligibility: for the project; OSI license required; public repo required; Requires OSI-approved license (MIT, Apache, GPL, etc.), public repo on GitHub/GitLab or similar, active development and community, and a primarily non-commercial purpose (commercial OSS considered case-by-case). In return: a backlink in your website or README and optionally a real-time visitor widget.

How to apply: Email oss@openpanel.dev with project URL, license type, and a brief description; response within a few business days.

last verified 2026-07-07

Open source project hosting

Free managed and unmanaged hosting for open source projects (full server, partial server, or colocation of project-owned hardware), run by the lab that hosts the Linux kernel, Apache Software Foundation, Drupal and 150+ other open source communities.

Eligibility: for the project; OSI license required; Project must follow an open development model and be freely available under an OSI-approved license; see OSUOSL Hosting Policy.

How to apply: Fill out the Hosting Request form on osuosl.org; the lab responds within a few days.

last verified 2026-07-07

AArch64 and OpenPOWER development hosting

Free access to ARM (AArch64) and POWER (PowerLinux/OpenPOWER) servers for functional development and CI/testing of open source software on those architectures (not for performance testing).

Eligibility: for the project; OSI license required; Systems intended for functional development and testing only.

How to apply: Request via the hosting request process on osuosl.org.

last verified 2026-07-07

Free for Open Source program (hosted package repositories)

Free hosted package repositories (APT/DEB, YUM/RPM, npm, Maven, PyPI, RubyGems, etc.) for open source projects, beyond the generic free plan (2 GB storage / 10 GB bandwidth); the program announcement describes free hosting for OSS packages, with partner projects such as Phalcon and StackStorm.

Eligibility: for the project; Must have an open source project; detailed criteria not published, granted on request.

How to apply: Sign up for the free 14-day trial at packagecloud.io, then contact packagecloud support to request the Free for Open Source program.

last verified 2026-07-06

POEditor (Open Source Project status)

Free localization for open source software with no string limitation (unlimited strings into unlimited languages, unlimited contributors), versus the regular free plan's 1,000-string cap.

Eligibility: for the project; OSI license required; Must provide the OSI-approved license type, a project description, and a link to the project page when requesting OS status.

How to apply: Create a project in POEditor, then in project Settings > Advanced click the Request link next to "Open Source Project" and submit the form for review.

last verified 2026-07-06

PostHog for Startups credits (open source track)

$50,000 in PostHog credits (product analytics, session replay, feature flags, etc.) via the PostHog for Startups program; qualifying open source projects can additionally have the standard 12-month credit expiry waived, effectively making the credits non-expiring.

Eligibility: for the project; non-commercial only; Open source project without corporate backing and with less than $200k annual revenue.

How to apply: Sign up for PostHog Cloud, apply via the PostHog for Startups program (posthog.com/startups), then contact support to have the 12-month credit expiry waived.

last verified 2026-07-06

PullApprove code review workflows

Free use for public repositories ("Free for public repos, 14-day trial for private"): code review workflow management via CODEREVIEW.toml with path-based ownership, approval requirements, and team-based review routing for pull requests.

Eligibility: for the project; public repo required

How to apply: Use it with a public repository; site says no account required, no separate application.

last verified 2026-07-06

Pullfrog for OSS (model costs covered)

Pullfrog covers AI model costs for qualifying open source projects, providing unlimited Kimi K2 usage at no cost for its GitHub coding agent.

Eligibility: for the project; public repo required; Repository must have over 1,000 GitHub stars.

How to apply: Apply via the link on the page, or contact support@pullfrog.com.

last verified 2026-07-07

PVS-Studio (Free Open Source License)

Free one-year PVS-Studio static analyzer license (C, C++, C#, Java) for a non-commercial open source project; one license per project, renewable annually.

Eligibility: for the project; non-commercial only; Project must be a personal creative endeavor; commercial projects, organization-developed projects (with financing or hired developers), and mirrors/forks are excluded. Requires adding PVS-Studio credit markup to the project's README.md and mentioning PVS-Studio in commits that fix issues it found.

How to apply: Add the required PVS-Studio markup to README.md, then fill out the application form on the offer page.

last verified 2026-07-07

Qlty Cloud (code quality and coverage)

Qlty Cloud (successor to Code Climate Quality) code health and coverage service free for community-based open source projects; Free-plan support via Discord and GitHub on a best-effort basis.

Eligibility: for the project; Stated for "community-based open source projects"; no further published criteria.

How to apply: Sign up at qlty.sh; pricing page indicates OSS use of Qlty Cloud is free (contact them if verification needed).

last verified 2026-07-06

Read the Docs Community documentation hosting

Free, ad-supported documentation hosting for open source projects on Read the Docs Community: public repository cloning, public docs hosting, automatic builds, versioning, search, pull request previews, and CDN hosting. "Open source documentation is always free on Read the Docs Community."

Eligibility: for the project; public repo required; For free and open-source projects; hosted docs are public and ad-supported.

How to apply: Self-serve — sign up for the Community tier via the "Sign up for open source" link on the pricing page.

last verified 2026-07-06

Hosted package repositories (open source plan)

Free-forever plan for open source projects with 100 MB storage and unlimited public packages on RepoForge's cloud-hosted package repositories.

Eligibility: for the project; non-commercial only; Plan is for open source projects; not for commercial use.

How to apply: Sign up directly at app.repoforge.io; no separate approval process mentioned.

last verified 2026-07-06

Reviewable code review

All features free for public repositories, forever: full GitHub code review workflows (multi-round reviews, tracked discussions, review state). Free plan also covers repos attached to an individual user account; private organization repos start at $39/month for ten users.

Eligibility: for the project; public repo required

How to apply: Sign in with GitHub on reviewable.io and start reviewing a public repo; no separate application.

last verified 2026-07-06

RISE RISC-V Runners

Free native RISC-V GitHub Actions runners for any open source project on GitHub: bare-metal RISC-V servers (hosted at Scaleway, no emulation), Docker-in-Docker support, fresh isolated environment per job, one job per node; use label ubuntu-24.04-riscv.

Eligibility: for the project; public repo required; Free of charge to any open source project on GitHub; no approval process and no allowlist.

How to apply: Install the RISE runners GitHub App (org or personal variant) and add "runs-on: ubuntu-24.04-riscv" to your workflow.

last verified 2026-07-07

Open Sauce (free open source accounts)

Free Sauce Labs accounts for qualifying open source projects for cross-browser and mobile testing on the Sauce Labs cloud; historically the Open Sauce plan gave unlimited testing minutes on multiple parallel VMs with access to all OS/browser combinations.

Eligibility: for the project; non-commercial only; public repo required; Account may only be used for the open source project; test results (videos, screenshots, logs) are publicly accessible; support limited to account issues.

How to apply: Sign up via the Sauce Labs open source page with your project's repository URL and a description of the project.

last verified 2026-07-07

Scout Monitoring (Large plan for OSS)

Free access to Scout's Large plan with full features: application traces, error monitoring, log management, query analysis, and alerting. Supports Ruby, Python, PHP, and Elixir.

Eligibility: for the project; OSI license required; public repo required; Requires an open source license (MIT, Apache, GPL, etc.) and the project must not be used as part of a commercial SaaS product.

How to apply: Open a support ticket via the "Apply for Free Access" link on the offer page with a link to your repo and a brief description.

last verified 2026-07-06

Screenshotbot hosted screenshot testing (free for open source)

Free access to Screenshotbot's hosted screenshot/visual regression testing service for open source projects (the product is also open source and self-hostable).

Eligibility: for the project; Stated in pricing FAQ as "Open source projects get free access"; no further criteria published.

How to apply: Email support@screenshotbot.io to request free open source access.

last verified 2026-07-07

Scrutinizer continuous code inspection

Free continuous code quality analysis for open-source repositories; Scrutinizer does not charge for open-source repositories and you can add as many as you like.

Eligibility: for the project; public repo required

How to apply: Sign up on scrutinizer-ci.com and add your open-source repository; no charge applies to open-source repos.

last verified 2026-07-06

Sentry Open-Source Sponsorship Plan (error monitoring and observability)

Free sponsored plan with Business features and no term limit: 5M errors, 5,000GB logs, 1B spans, 100K replays, 500 cron monitors, 25 uptime monitors, 3K continuous profile hours, 150 UI profile hours, 10GB attachments, 1,000 size analysis uploads, and Seer for 5 active contributors; overage budget can be enabled.

Eligibility: for the project; OSI license required; Project must be released under a friendly license like Apache or MIT and qualify as genuinely open source software.

How to apply: Application form on the offer page: provide name/email/website, select "Open-Source" company type, Sentry org details, project description and GitHub repository link.

last verified 2026-07-06

SignPath code signing (via SignPath Foundation)

Free code signing service and an OV-level code signing certificate issued to SignPath Foundation, with the private key stored on the Foundation's HSM. Supports signing EXE, MSI, Docker images, Office macros and more, with CI/CD pipeline integration (GitHub Actions, Azure DevOps, Jenkins), audit trails and policy enforcement, at no cost.

Eligibility: for the project; OSI license required; public repo required; OSI-approved license without commercial dual-licensing for all components; project must already have released the software in the form to be signed (no release history = not eligible).

How to apply: Apply at signpath.org ("Apply for Free Code Signing") with the project's repository URL, download page URL and description; the Foundation reviews eligibility.

last verified 2026-07-06

Sleek Pro plan (free for open source maintainers)

1 year of the Sleek Pro plan free for open source maintainers: real-time analytics, unlimited events, and everything offered to paying customers.

Eligibility: for the maintainer; Open to anyone maintaining an open source project; no further criteria published.

How to apply: Application form on the page (name, email, project name, website, GitHub URL); response within a few days.

last verified 2026-07-07

Secure Developer Program (Snyk security platform)

A free Snyk account with full enterprise entitlements and no usage limitations for open source projects, plus a members' Discord community with Snyk security professionals and dedicated help integrating Snyk into build pipelines and development environments.

Eligibility: for the project; non-commercial only; Project must be community-driven, not backed by any corporate entity. Requires linking back to snyk.io in the repo README and project website, and granting Snyk permission to display the project logo.

How to apply: Application form via Snyk's partner portal (separate paths for existing and new projects), linked from the offer page.

last verified 2026-07-06

Socket supply chain security (free for open source)

Socket is "free to use for open-source" — the Free plan covers unlimited developers and repos, 1,000 scans per month, detection of 70+ risk types, and automatic blocking of malicious dependencies. Qualifying open source organizations can additionally request a complimentary Team account.

Eligibility: for the project; public repo required

How to apply: Install Socket on your open source repos using the Free plan; for a complimentary Team account for open source work, contact Socket via their contact form.

last verified 2026-07-06

SonarQube Cloud (formerly SonarCloud)

SonarQube Cloud automated code quality and security analysis "free for analyzing open source projects" — continuous analysis of public open source repositories across many languages and DevOps integrations.

Eligibility: for the project; public repo required; Free analysis applies to open source (public) projects; detailed criteria not published on the page.

How to apply: Sign up on SonarQube Cloud and import the public open source repository; no separate application.

last verified 2026-07-06

SonarQube Cloud open source plan

Free open source plan on SonarQube Cloud (formerly SonarCloud): automated code review with continuous quality and security analysis for many popular languages and DevOps integrations, free for open source / public repository projects.

Eligibility: for the project; public repo required

How to apply: Sign up for free on SonarQube Cloud and analyze your public repository; no separate application.

last verified 2026-07-06

Maven Central publishing

Free publishing and hosting of open source Java/JVM components on the Central Repository (Maven Central), the default artifact repository for the Java ecosystem. Free for ordinary community open source publishing; commercial-natured publishing may be subject to fees or limits.

Eligibility: for the project; Components must declare their distribution license in the POM and meet metadata/GPG/coordinate requirements; requires verified namespace ownership. Published artifacts are immutable.

How to apply: Sign up at central.sonatype.com (Google/GitHub/email), verify a namespace, then publish via the Central Portal or build-tool plugins.

last verified 2026-07-06

SourceForge open source project hosting and distribution

Free project hosting for open source software: download distribution with unlimited bandwidth over a global mirror network, download analytics, git/Mercurial/Subversion repository hosting, issue tracking, forums, wiki documentation, and listing in the Open Source Directory (~20 million users, 2.6M downloads/day).

Eligibility: for the project; Project must be open source software; the free tier is specifically for OSS projects (business software is a separate directory).

How to apply: Create a project at https://sourceforge.net/create/ (or import from GitHub); free registration, no application review described.

last verified 2026-07-06

Sourcery AI code review (Open Source plan)

Pro features free for open source repositories, plus limited security scans for up to 3 repos run biweekly (paid Team plans have 200+ repos with daily scans).

Eligibility: for the project; public repo required; Works right away on projects in a public repo on GitHub, GitLab, etc.

How to apply: Sign up via the open source plan link on the pricing page; works automatically for public repos.

last verified 2026-07-06

Stainless SDK generator Starter plan (free for FOSS)

Stainless Starter plan (normally $79/month per SDK generator) free for qualifying non-commercial open source projects: SDK generation from OpenAPI specs, plus documentation site and MCP server generation.

Eligibility: for the project; non-commercial only; Limited to qualifying non-commercial open source (FOSS) projects; reviewed and approved case by case.

How to apply: Create a free account, then email Stainless (address on pricing page) to request FOSS approval.

last verified 2026-07-07

Statically CDN

Free global CDN for open source projects: serves static assets from public Git repositories (GitHub, GitLab, Bitbucket), npm packages, and GitHub Gists via cdn.statically.io URLs, powered by bunny.net and Cloudflare. Note the /img/ image-proxy endpoint has been disabled due to abuse.

Eligibility: for the project; public repo required; Serves assets from publicly hosted repositories and packages; intended for open-source projects.

How to apply: No application; construct URLs like https://cdn.statically.io/gh/:user/:repo@:tag/:file (or /npm/, /gist/).

last verified 2026-07-07

StyleCI code style review

Free plan for public projects ("public PHP projects will always be free with StyleCI"): unlimited public repositories, unlimited analyses, and full fixing automation for PHP, JS, CSS, Vue.js, and Python code style.

Eligibility: for the project; public repo required

How to apply: Sign up via "Get started" and connect a GitHub, GitLab, or Bitbucket account; no separate application.

last verified 2026-07-06

Oxygen XML Editor (open-source project donation)

Up to ten Named User 6-month subscription-free Oxygen XML licenses each year for a project's leads and core contributors.

Eligibility: for contributors; Requires an established website, a released product, active community (recent forum activity), updated news section, and regular builds. Licenses may only be used for developing the specified open source project; a visible Oxygen XML link on the project site is required.

How to apply: Application form on the offer page (project name, URL, license page, forum/mailing list, description, contact); Oxygen team reviews and responds.

last verified 2026-07-06

SmartGit (non-commercial license)

Free SmartGit license (Git GUI client for Windows, macOS, Linux) for open-source developers, offered under syntevo's non-commercial license program (also covering students and public academic/charitable staff).

Eligibility: for the maintainer; non-commercial only; Open-source developers are an explicitly named eligible group; program is shared with students and employees of public academic and charitable institutions.

How to apply: Request a complimentary license via the registration form at syntevo.com/register-non-commercial/.

last verified 2026-07-06

Tailscale mesh VPN (Community on GitHub plan)

Free "Community on GitHub" plan for open source organizations — comparable to paid plans, intended for uses like shared build tools, internal test servers, and sharing project resources among developers. Exact user/device limits are not published on the plans page.

Eligibility: for the organization; OSI license required; Must have a GitHub organization, use GitHub for authentication, and use Tailscale for an open source project with an OSI-approved license.

How to apply: Cannot be enabled from the admin console Billing page; sign in with GitHub authentication and contact Tailscale Support to enroll.

last verified 2026-07-06

Tembo platform (free for open source)

Full access to all Tembo features including AI agents, automations, and integrations, with unlimited contributors, priority support, and perpetual free access for as long as the project remains open source.

Eligibility: for the project; OSI license required; non-commercial only; public repo required; Project must be publicly hosted on GitHub or GitLab under an OSI-approved license (e.g. MIT, Apache 2.0), be non-commercial with no revenue, show active development and community participation; applicant must be an official owner or maintainer.

How to apply: Application form on the page (name, email, repository link) with maintainer confirmation.

last verified 2026-07-07

TestingBot browser and device grid (open source plan)

Free unlimited automated testing for open source projects with 2 concurrent tests, access to 6100+ browsers and real iOS/Android devices, support for Selenium, Cypress, Playwright, Puppeteer, Appium, Espresso, XCUITest and Maestro, plus video, screenshots, console/network logs, CI/CD integration and status badges.

Eligibility: for the project; OSI license required; non-commercial only; public repo required; Must be publicly hosted on GitHub, GitLab or Bitbucket with a clear README and recent commits.

How to apply: Create a free account (no credit card), submit your repository URL and project description; approval typically within a couple of business days.

last verified 2026-07-06

Cross-browser and mobile testing platform (Open Source Program)

Free licenses to test open-source projects across 5,000+ browsers and devices, access to the test orchestration platform with built-in CI and analytics, plus mentorship, promotion, and optional financial sponsorship (a $250,000 open source grants pool). Program materials also mention 10 HyperExecute parallel sessions and full Test-at-Scale access for OSS projects.

Eligibility: for the project; OSI license required; public repo required; Valid open source license (MIT, Apache 2.0, GPL, etc.), publicly accessible on GitHub/GitLab, recent updates, and clear documentation (README) required.

How to apply: Fill out the application form on the open-source page with project details and repository URL; questions to support@testmuai.com.

last verified 2026-07-06

Testspace test results dashboard (Open plan)

"Open" plan at $0 on the GitHub Marketplace: Testspace test management and results dashboard software for open source accounts.

Eligibility: for the project; public repo required; Plan is designated for open source accounts; detailed criteria not published.

How to apply: Install the Testspace app from the GitHub Marketplace and select the free Open plan for your open source account.

last verified 2026-07-06

Tesults test results reporting (open source program)

Complimentary access to the Standard plan (normally $19 per active user per month) for independent or community-driven open source projects.

Eligibility: for the maintainer; Aimed at independent maintainers and community-driven projects rather than projects primarily maintained by commercial organizations.

How to apply: Email help@tesults.com to apply for the open source program.

last verified 2026-07-06

Tolgee Cloud Business plan for open source

Tolgee Cloud Business plan free for open source projects (localization/ translation management platform); paid-tier features at no cost, granted on request. Self-hosting the open source Tolgee platform is also free.

Eligibility: for the project; Project must be open source software that can be freely used, changed, and shared (in modified or unmodified form) by anyone.

How to apply: Email info@tolgee.io or DM the team in the Tolgee Slack community.

last verified 2026-07-06

Transifex (Open Source plan)

Transifex localization platform free forever for qualifying open source projects, including collaboration with translator communities, APIs and SDKs, and support for 100+ frameworks and tools.

Eligibility: for the project; OSI license required; non-commercial only; public repo required; Project must have no funding, revenue, or commercialization model.

How to apply: Sign up via the "Use Transifex for Free" link on the open source page (app.transifex.com/signup); eligibility is based on the stated criteria.

last verified 2026-07-06

Transloadit (file uploading and encoding API)

Free access to the Transloadit file uploading and media encoding platform for open source projects and nonprofits.

Eligibility: for the project; Open source projects and nonprofit organizations qualify; a "Powered by Transloadit" link on your website is required.

How to apply: Add a "Powered by Transloadit" link to your website and reach out to support@transloadit.com to apply.

last verified 2026-07-06

Tuist server (open source program)

All paid Tuist server features free forever for open source projects, including binary caching and selective testing (build time improvements of 70% and more cited for cached builds).

Eligibility: for the project; public repo required; Project must be open source and add a note about Tuist to its README.md.

How to apply: Email contact@tuist.dev with a link to the repository and your account handle; the team sets the plan on your account.

last verified 2026-07-07

Upstash Open Source Program (monthly credits)

$1,000 monthly credit grant covering all Upstash costs (Redis, QStash, etc.), direct technical/integration support with Pro-level priority, and co-marketing (technical articles, backlinks).

Eligibility: for the project; public repo required; For open source projects building on Upstash; no further formal criteria published. Application form notes it is open until September 29th, so availability may be time-windowed.

How to apply: Application form on the page (name, Twitter/X username, GitHub repo link); reviewed on a rolling basis.

last verified 2026-07-07

Vercel Open Source Program

$3,600 in Vercel platform credits distributed over 12 months, an OSS Starter Pack with credits from third-party services, and priority community support from Vercel. Projects graduate after 12 months.

Eligibility: for the project; Project must be hosted on (or plan to use) Vercel, demonstrate measurable impact or growth potential, adopt a Code of Conduct, and use credits solely for the open source project. Projects at any stage welcome.

How to apply: Apply via the program page; cohort-based — applications were closed as of July 2026, reopening in August.

last verified 2026-07-06

WebGazer uptime and cron monitoring (open source program)

Comprehensive monitoring services at no cost for eligible open source projects: website monitoring (HTTP monitors), cron job monitoring (heartbeat monitors), and hosted status pages.

Eligibility: for the project; Must be an open source project; approval based on application details, no further criteria published.

How to apply: Submit the application form on the offer page with project name, contact email, project URL, repository URL, and a project description; questions to support@webgazer.io.

last verified 2026-07-06

Hosted Weblate (Libre plan)

Free (gratis) Libre plan on hosted.weblate.org with the same limits as the 160k plan: 160,000 hosted strings, unlimited translation projects, components, and translators, with continuous localization features.

Eligibility: for the project; public repo required; Must be a public libre (free/open source licensed) project.

How to apply: Set the project up on hosted.weblate.org/hosting/ and request the Libre plan; no formal application form beyond project setup.

last verified 2026-07-06

Wing Pro (free license for open source developers)

Free Wing Pro (Python IDE) license for unpaid open source development; includes upgrades only within the same major release version (reapply for new major versions). No support guarantees for free-license users.

Eligibility: for the maintainer; non-commercial only; Must use Wing Pro solely for unpaid and unfunded open source development; project needs a website with a clear description, at least one non-trivial public release, and a copy of or link to the open source license; applicant must show proof of past contribution to the project.

How to apply: Request via the free licenses page on wingware.com, including proof of past contribution to the open source project.

last verified 2026-07-07

YourKit Java Profiler (open source license)

Free YourKit Java Profiler license for developers of the open source project; one installed copy at a time per license key, for development of that specific project only. YourKit asks for a reference link on the project's web pages.

Eligibility: for the project; non-commercial only; Granted to developers of non-commercial open source projects with an established and active community.

How to apply: Email sales@yourkit.com with subject "YourKit Java Profiler Open Source License Request".

last verified 2026-07-06

Zeplin Basic, 3 Pack plan (design handoff)

The monthly Basic, 3 Pack plan free for one year — a personal workspace, up to 3 active projects, and unlimited members.

Eligibility: for contributors; Program covers open source contributors (alongside students, teachers, and nonprofits); page does not publish license or project-age requirements.

How to apply: Fill out the Typeform application linked from the support article ("Apply now").

last verified 2026-07-06

Zulip Cloud Standard

Zulip Cloud Standard (the paid team chat plan, including full message history) free for open-source projects; Zulip sponsors hundreds of open-source projects including Rust and Lean.

Eligibility: for the organization; Open-source project communities; formal criteria not published on the page — sponsorship requests are reviewed. Self-hosting the 100% open-source Zulip server is an alternative.

How to apply: Create a Zulip Cloud organization and use the "Request sponsorship" flow (or contact sales@zulip.com).

last verified 2026-07-06