What does Budibase replace?

Budibase is a free alternative to Retool ($120/yr).

Is Budibase open source?

Yes. Budibase is licensed under GPL-3.0, an OSI-approved open-source license.

Yes (self-hosted server; web UI).

Yes. Budibase is a server app you run on your own server.

A free, open-source alternative to Retool. Switching saves $120/yr at list price.

Checked Oct 17, 2026 · How we check

Self-hosted server

Replaces it Active Open source · GPL-3.0 Linux Self-hostable

Budibase/budibase28.3k★last push Oct 16, 2026checked Oct 17, 2026

Self-host

Runs on your own Linux server. Setup docs are on budibase.com.

What does Budibase replace?: Budibase is a free alternative to Retool ($120/yr).
Is Budibase open source?: Yes. Budibase is licensed under GPL-3.0, an OSI-approved open-source license.
Does Budibase run on Linux?: Yes (self-hosted server; web UI).
Can you self-host Budibase?: Yes. Budibase is a server app you run on your own server.