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KintoSupabase
Free

Free and open source; you run it on your own server.

 Freemium

The stack is open source and self-hostable. The hosted service has a free tier and paid…

Linux, Self-hosted Web, Self-hosted
  • Built-in synchronisation and sharing of JSON records
  • Permission inheritance across buckets, collections and records
  • Built on plain PostgreSQL, so data and SQL skills stay portable
  • The entire stack can be self-hosted rather than rented
  • A backend for developers, not an end-user app
  • Requires PostgreSQL for production use
  • Self-hosting means operating a dozen services rather than one
  • The hosted free tier pauses inactive projects
Self-hosted Self-hosted, Hosted service
Open source Open source
License: Apache-2.0 License: Apache-2.0
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.