FOS-0042CodeAnt AIAI and MLsecurityCodeAnt AI's AI code review, SAST security scanning, and code quality platform at 100% off (free) for…ACTIVEverified 2026-09-07›
What you get
CodeAnt AI's AI code review, SAST security scanning, and code quality platform at 100% off (free) for open source projects.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Email amartya@codeant.ai with subject "Open Source Work" (link on the pricing page).
Provenance
Confirmed against codeant.ai/pricing on 2026-09-07, matched anchor “100% OFF FOR OPEN SOURCE”.
FOS-0047CodeRabbitAI and MLFree AI code reviews forever for public repositories (rate-limited Pro features), including PR…ACTIVEverified 2026-09-07›
What you get
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.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
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.
Provenance
Confirmed against coderabbit.ai/pricing on 2026-09-07, matched anchor “free open-source plan”.
FOS-0058cubicAI and MLIDEs and dev toolscubic's AI code review is 100% free for open source teams: connect it to a public repository to get…ACTIVEverified 2026-09-07›
What you get
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.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
No application; connect cubic to a public repository via the GitHub integration.
Provenance
Confirmed against cubic.dev/pricing-plans on 2026-09-07, matched anchor “free for open source teams”.
FOS-0069EllipsisAI and MLIDEs and dev toolsEllipsis automated AI code review on GitHub pull requests, completely free for public GitHub…ACTIVEverified 2026-09-07›
What you get
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).
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
No application; install the Ellipsis GitHub app - free access is granted automatically based on the repository being public.
Provenance
Confirmed against ellipsis.dev/pricing on 2026-09-07, matched anchor “free for open source”.
FOS-0073falAI and MLFree compute on fal's GPU platform for researchers and developers working on open source AI…ACTIVEverified 2026-09-07›
What you get
Free compute on fal's GPU platform for researchers and developers working on open source AI initiatives; a past grantee credits the grant with accelerating training for the Moondream model.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Email grants@fal.ai with a description of the project, its goals, how it fits fal's open source mission, and links to relevant work or GitHub repositories.
Provenance
Confirmed against fal.ai/grants on 2026-09-07, matched anchor “fal Research Grants”.
FOS-0079GitHubhostingCI/CDAI and MLFree GitHub Copilot Pro subscription (the paid individual tier) for maintainers of popular open source…ACTIVEverified 2026-09-07›
Offer 1, GitHub Copilot Pro (free for OSS maintainers)
What you get
Free GitHub Copilot Pro subscription (the paid individual tier) for maintainers of popular open source repositories.
Applies to
an individual maintainer
Requirements
public repository
run a repo match above to see which you meet →
How to apply
No application form: check eligibility under profile menu > Copilot settings; access is granted automatically if you qualify.
Provenance
Confirmed against docs.github.com/en/copilot/how-tos/manage-your-account/get-free-access-to-copilot-pro on 2026-09-07, matched anchor “Access Copilot Pro for free”.
Offer 2, GitHub Actions, Packages and paid-tier features on public repositories
What you get
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.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
No application; benefits apply automatically to public repositories.
Provenance
Confirmed against github.com/pricing on 2026-09-07.
FOS-0081Gitpod (Ona)IDEs and dev toolsAI and MLUp to $200/month in free Ona credits for open source maintainers and contributors, usable for Ona's…ACTIVEverified 2026-09-07›
What you get
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.
Applies to
an individual maintainer
Requirements
no stated requirements
How to apply
Apply via the signup form at ona.com/open-source.
Provenance
Confirmed against ona.com/open-source on 2026-09-07, matched anchor “monthly free credits for maintainers”.
FOS-0086GraphiteIDEs and dev toolsCI/CDAI and MLFull Graphite Standard plan free for open source projects: unlimited stacking (stacked PRs), insights,…ACTIVEverified 2026-09-07›
What you get
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.
Applies to
organization
Requirements
public repository
run a repo match above to see which you meet →
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.
Provenance
Confirmed against graphite.com/blog/startup-program-announcement on 2026-09-07, matched anchor “free for startups and open source projects”.
FOS-0088GreptileAI and MLIDEs and dev toolsGreptile's codebase-aware AI code review on pull requests, free (100% off) for qualifying open source…ACTIVEverified 2026-09-07›
What you get
Greptile's codebase-aware AI code review on pull requests, free (100% off) for qualifying open source projects.
Applies to
the project , not individual maintainers
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Sign up via the open source program page (greptile.com/open-source); no separate application form is published.
Provenance
Confirmed against greptile.com/open-source on 2026-09-07, matched anchor “Open Source Program”.
FOS-0127OpenAIAI and ML6 months of free ChatGPT Pro with Codex access for open source maintainers, plus conditional access to…ACTIVEverified 2026-09-07›
Offer 1, Codex for Open Source (ChatGPT Pro subscription)
What you get
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.
Applies to
an individual maintainer
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Application form at openai.com/form/codex-for-oss/; reviewed on a rolling basis, Codex Security access reviewed case by case.
Provenance
Confirmed against developers.openai.com/community/codex-for-oss on 2026-09-07, matched anchor “six months of chatgpt pro”.
Offer 2, Codex Open Source Fund (API credit grants)
What you get
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).
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Application form at openai.com/form/codex-open-source-fund/.
Provenance
Confirmed against openai.com/form/codex-open-source-fund on 2026-09-07, matched anchor “supporting open source”.
FOS-0137PullfrogAI and MLIDEs and dev toolsPullfrog covers AI model costs for qualifying open source projects, providing unlimited Kimi K2 usage…STALEre-check due 2026-07-20›
What you get
Pullfrog covers AI model costs for qualifying open source projects, providing unlimited Kimi K2 usage at no cost for its GitHub coding agent.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Apply via the link on the page, or contact support@pullfrog.com.
Provenance
Confirmed against pullfrog.com/for-oss on 2026-07-20.
FOS-0161SourcegraphIDEs and dev toolsAI and MLComplimentary Sourcegraph AI and code search workspace licenses for maintainers of Cloud Native…ACTIVEverified 2026-09-07›
What you get
Complimentary Sourcegraph AI and code search workspace licenses for maintainers of Cloud Native Computing Foundation projects.
Applies to
an individual maintainer
Requirements
OSI-approved license
run a repo match above to see which you meet →
How to apply
Fill in the Sourcegraph Workspace Application form embedded on the offer page: email, name, and a link to the project's CNCF page.
Provenance
Confirmed against sourcegraph.com/supporting-open-source on 2026-09-07, matched anchor “Supporting the CNCF”.
FOS-0169TemboAI and MLdatabaseFull access to all Tembo features including AI agents, automations, and integrations, with unlimited…STALEre-check due 2026-07-20›
What you get
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.
FOS-0183What the DiffCI/CDAI and MLA free What the Diff account for the requested open source repository: AI-written pull request…ACTIVEverified 2026-09-07›
What you get
A free What the Diff account for the requested open source repository: AI-written pull request summaries and changelogs. Made by Beyond Code.