Directus

Directus puts a data studio and admin interface on top of any SQL database, turning existing tables into managed content that can be served through REST and GraphQL APIs. You can define collections and fields visually, set granular permissions and roles, manage files, and wire up flows that automate work when records change.

It suits teams that already keep structured data elsewhere and want forms, dashboards, or a headless frontend without writing a custom back office.

Running it on your own infrastructure means the database stays under your control, there is no per-seat charge, and a backup is a database dump you own.