Run open-source projects on free tiers. CockroachDB, Netlify, GitHub OAuth, BetterStack, GitHub Actions, Codecov — verified limits, cost at scale, stability ratings.
Free infrastructure for open-source maintainers. Focus on your code, not your cloud bill.
Open-source projects get special treatment from most cloud providers — free tiers are more generous and often unlimited for public repos. This stack leverages those OSS advantages with services that have stable, long-standing free tiers and strong community support.
| Category | Service | Stability | Free | ~1K MAU | ~10K MAU | ~100K MAU |
|---|---|---|---|---|---|---|
| Database | CockroachDBFree serverless distributed SQL — 50M Request Units + 10 GiB storage/month, scales to zero | active | $0 | $0 | $0 | $295 |
| Hosting | NetlifyThe Free plan offers 300 credit limit / month, including production deploys (15 credits… read 2026-09-07 | at risk | $0 | $19 | $19 | $99 |
| Auth | WorkOSAuthKit with up to 1M MAU free for user management — email/password, social login, MFA… | active | $0 | $0 | $0 | $0 |
| Monitoring | BetterStack10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays… | active | $0 | $0 | $25 | $85 |
| ResendDeveloper-first email API — 3K emails/month free (100/day cap), 3 domains, 1K marketing… | active | $0 | $0 | $20 | $90 | |
| CI/CD | GitHub ActionsFree CI/CD for public repos (unlimited minutes). Private repos: 2,000 min/mo… | active | $0 | $0 | $0 | $0 |
| Total | $0/mo | $19/mo | $64/mo | $569/mo |
10 GiB free distributed SQL. Excellent for OSS projects that need a resilient, scalable database.
Free serverless distributed SQL — 50M Request Units + 10 GiB storage/month, scales to zero
Great for docs sites and project landing pages. Deploy previews for every PR.
The Free plan offers 300 credit limit / month, including production deploys (15 credits each), compute (10 credits per GB-hour), bandwidth (20… read 2026-09-07
1M MAU free — effectively unlimited for any OSS project's auth needs.
AuthKit with up to 1M MAU free for user management — email/password, social login, MFA. Enterprise SSO/SCIM priced separately
Free status page for your OSS project. Users can check uptime without filing issues.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
3K emails/mo free covers contributor notifications and community updates.
Developer-first email API — 3K emails/month free (100/day cap), 3 domains, 1K marketing contacts/month, 5 AI credits, 30-day data retention
Unlimited free minutes for public repos. The standard for OSS CI/CD.
Free CI/CD for public repos (unlimited minutes). Private repos: 2,000 min/mo GitHub-hosted runners, 500 MB artifact storage, 10 GB cache/repo…
Want to customize this stack? Here are smart swaps that can save money at scale:
Save $99/mo at 100K users — unlimited bandwidth and builds for static sites
Better developer experience with branching and scale-to-zero, though smaller free tier (0.5 GB)
Use plan_stack to get AI-powered stack recommendations tailored to your specific use case.
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