CircleCI Open Source Free CI/CD for Open Source Projects

About CircleCI Open Source Program

Up to 400K monthly Linux/Docker credits (~80K build minutes) + 30K macOS/Windows credits for open source projects—completely free, no sponsorship required.
Enterprise-grade CI/CD features included: Docker layer caching, SSH debugging, flaky test detection, and advanced orchestration—no feature gates.
Works with GitHub, GitLab, and Bitbucket; credits renew monthly as long as your project remains open source and eligible.

CircleCI is a cloud-native CI/CD platform that automates build, test, and deployment workflows. The Open Source Program grants free monthly credits to qualifying open source projects, delivering enterprise-grade pipeline capabilities without cost. Eligible projects on GitHub, GitLab, or Bitbucket gain immediate access to robust testing, caching, and debugging tools.

CircleCI Open Source Program at a glance

CircleCI is a cloud-native CI/CD platform that automates build, test, and deployment workflows. The Open Source Program grants free monthly credits to qualifying open source projects, delivering enterprise-grade pipeline capabilities without cost. Eligible projects on GitHub, GitLab, or Bitbucket gain immediate access to robust testing, caching, and debugging tools.

400KMonthly Linux/Docker credits (≈80K build minutes)
30KMonthly macOS/Windows credits
100%Discount on eligible open source builds
3Git platforms supported (GitHub, GitLab, Bitbucket)

The CircleCI Open Source Program offer explained

CircleCI credits are a usage-based currency; 400K Linux credits per month covers approximately 80,000 build minutes on a small Docker instance, while 30K macOS/Windows credits support premium OS builds. Credits renew monthly for as long as your project qualifies as open source. There is no upfront cost, no credit card required, and no expiration cliff—only continuous eligibility verification.

Heads up: credit programs change their terms and caps regularly — confirm the current offer on the application page before you plan around it.

Apply to CircleCI Open Source Program

Eligibility & key terms

Detail	What to know
Project Type	Open source (OSI-approved license or equivalent public repository)
Git Hosting	GitHub, GitLab, or Bitbucket
Stage	Any (no funding stage restrictions)
Sponsorship Required	No—direct application; no VC or accelerator endorsement needed
Credit Renewal	Monthly, contingent on ongoing open source status

How CircleCI Open Source Program compares

Here's how CircleCI Open Source Program stacks up against other discounted SaaS access in the same category:

Program	Headline offer	Category
CircleCI Open Source Program	Up to 100% off	This page
Linear for Startups	Up to 6 months free Linear — partner code required, under 50 employees	SaaS Startup Programs
Clerk for Startups	50K MAU + 100 orgs free (5x standard free tier) — auth platform for startups, direct apply	SaaS Startup Programs
Amplitude Startup Scholarship	1 year free Amplitude Growth plan — under 20 employees, under $10M raised, direct apply	SaaS Startup Programs

How to apply for CircleCI Open Source Program

Verify open source status
Ensure your repository is public and licensed under an OSI-approved license (MIT, Apache 2.0, GPL, etc.).
Sign up with CircleCI
Connect your GitHub, GitLab, or Bitbucket account at circleci.com and authorize the integration.
Trigger a build
Push code or create a pull request to activate your project; CircleCI will detect it and begin consuming free credits.
Confirm eligibility
CircleCI's system automatically verifies open source status; no manual application form required for most projects.

Pro tip: Layer your Docker builds aggressively—CircleCI's Docker layer caching is included and dramatically reduces credit burn on repeated builds. Combine with matrix builds to parallelize tests across multiple OS/Node versions without proportional credit cost.

The most generous free CI/CD offering for open source: 400K monthly credits, zero gatekeeping, and enterprise features from day one.SaaSTweaks editorial

Who should apply — and who shouldn't

Apply if

Your project is open source and you need reliable, scalable CI/CD without vendor lock-in concerns.
You run frequent builds across Linux, macOS, and Windows and want to avoid credit fragmentation.
You value Docker layer caching and advanced debugging (SSH, flaky test detection) as core workflow tools.
You're building a library, framework, or tool that benefits from continuous integration across multiple platforms.

Skip if

Your project is closed-source or proprietary—this program is open source only.
You need GPU runners or specialized hardware; CircleCI's free tier does not include GPU compute.
You require guaranteed SLA or dedicated support; the program includes community support only.

If CircleCI Open Source Program isn't the right fit, compare it against Linear for Startups, Clerk for Startups, Amplitude Startup Scholarship, 1Password for Open Source — or browse the full SaaS Startup Programs category.

Final verdict

Apply — strong program.

CircleCI's open source program is one of the most permissive and feature-rich in the market: no sponsorship gatekeeping, monthly credit renewal, and enterprise-grade tooling included. For any open source project with regular CI/CD needs, this is a no-brainer—apply immediately and reallocate budget elsewhere.

Apply to CircleCI Open Source Program

Capabilities

• 400K monthly Linux/Docker credits
• 30K monthly macOS/Windows credits
• Docker layer caching
• SSH debugging for failed builds
• Flaky test detection and re-run
• Advanced job orchestration and parallelization
• Multi-platform CI/CD (Linux, macOS, Windows)
• GitHub, GitLab, Bitbucket integration

How to claim

Click claim

Hit the button on this page — opens the partner site in a new tab.
Sign up through the partner link

No code needed — the offer applies automatically when you register through our CircleCI Open Source Program link.
Offer applies automatically

No surcharge to you — verified by the SaaSTweaks Deal Desk, not the vendor.

See CircleCI Open Source Program alternatives →

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Frequently asked

Who's eligible?

Any open source project with an OSI-approved license (MIT, Apache 2.0, GPL, etc.) hosted on GitHub, GitLab, or Bitbucket. No funding stage, company affiliation, or sponsorship required.

How long do credits last?

Credits renew monthly. There is no expiration date as long as your project remains open source and you continue to use CircleCI.

Do I need a VC sponsor or accelerator?

No. CircleCI's open source program is direct-apply; no third-party endorsement or sponsorship is required.

What happens when I exceed my monthly credits?

Builds will fail or queue until the next month's credits arrive. You can purchase additional credits on a pay-as-you-go basis, but the program itself does not auto-charge.

Can I combine this with other CircleCI programs or discounts?

CircleCI does not publicly document stacking rules. Contact support to clarify if you're also eligible for startup or nonprofit programs.

How long does approval take?

Automatic for most projects; CircleCI verifies open source status on first build. No manual review queue—you can start building immediately.