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Supabase vs Kinto: catalog facts
Supabase	Kinto
Freemium The stack is open source and self-hostable. The hosted service has a free tier and paid…	Free Free and open source; you run it on your own server.
Web, Self-hosted	Linux, Self-hosted
Built on plain PostgreSQL, so data and SQL skills stay portable The entire stack can be self-hosted rather than rented	Built-in synchronisation and sharing of JSON records Permission inheritance across buckets, collections and records
Self-hosting means operating a dozen services rather than one The hosted free tier pauses inactive projects	A backend for developers, not an end-user app Requires PostgreSQL for production use
Self-hosted, Hosted service	Self-hosted
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
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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