head to head · open source
Supabase vs react-cosmos
Supabase has 110,361 GitHub stars, 14,414 forks, 1,128 open issues and last shipped today. react-cosmos has 8,686 stars, 381 forks, 5 open issues and last shipped 20 days ago. Supabase leads on adoption by 1,171% (110,361 vs 8,686 stars). Supabase is written in TypeScript under Apache-2.0; react-cosmos is written in TypeScript under MIT. Supabase has attracted 13% as many forks as stars, react-cosmos 4%. Supabase was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Supabase | react-cosmos | |
|---|---|---|
| GitHub stars | ★ 110K | ★ 8.7K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-20 | 2026-08-31 |
| Forks | ⑂ 14K | ⑂ 381 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Supabase if
- You weight community size — 110K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick react-cosmos if
- You want the react-cosmos feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and react-cosmos fits your workflow better
About Supabase
Supabase is an open source, Apache 2.0 licensed Postgres development platform that bundles a dedicated Postgres database with authentication, auto generated APIs, realtime subscriptions, file storage, and edge functions for developers building web, mobile, and AI applications.
read the full Supabase overview →
About react-cosmos
React Cosmos is a sandbox for developing and testing UI components in isolation, built for React developers who want to build, render and verify individual components without launching the full application around them.
read the full react-cosmos overview →
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Frequently asked questions
Is Supabase or react-cosmos more popular?
Supabase has 110,361 GitHub stars and react-cosmos has 8,686. Supabase has the larger community by that measure.
Are Supabase and react-cosmos free?
Both are open source. Supabase is licensed under Apache-2.0 and react-cosmos under MIT. Neither carries a licence fee.
What is the difference between Supabase and react-cosmos?
Supabase is written in TypeScript and react-cosmos in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Supabase or react-cosmos?
Choose Supabase if you want the larger community (110,361 stars) or its Apache-2.0 licence terms. Choose react-cosmos if its feature set, stack or MIT licence fits better. Both are self-hostable.