What does authentik replace?

authentik is a free alternative to Auth0 ($420/yr).

Is authentik open source?

Yes. authentik is licensed under MIT, an OSI-approved open-source license.

Yes (self-hosted server; web UI).

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

A free, open-source alternative to Auth0. Switching saves $420/yr at list price.

Checked Oct 17, 2026 · How we check

Self-hosted server

Open source · MIT Linux Self-hostable

goauthentik/authentik25.9k★last push Oct 12, 2026checked Oct 17, 2026

Self-host

Runs on your own Linux server. Setup docs are on goauthentik.io.

What does authentik replace?: authentik is a free alternative to Auth0 ($420/yr).
Is authentik open source?: Yes. authentik is licensed under MIT, an OSI-approved open-source license.
Does authentik run on Linux?: Yes (self-hosted server; web UI).
Can you self-host authentik?: Yes. authentik is a server app you run on your own server.