Editor's pick Open source
Supabase
A backend on Postgres with auth, storage and realtime.
What it is
An open source alternative to Firebase built on plain Postgres: you get a real database with SQL, an auto-generated REST and GraphQL API, authentication with social providers, file storage, edge functions and realtime subscriptions.
Best for
MVPs that need a database, login and storage on day one.
What the free plan includes
- 500 MB of Postgres database
- 1 GB of file storage
- 50,000 monthly active users
- Projects are paused after a week of inactivity
- 2 active projects at a time
Free plans change often. Confirm the limits on the official page before deciding.