authentik
Flexible identity provider and SSO platform with OAuth2, SAML, LDAP and proxy outposts.
- Identity & SSO
- Python
- MIT
- Docker
- Actively maintained
GitHub stats
- GitHub stars
- 25,859
- Forks
- 2,058
- Open issues
- 758
- Commits, last 12 months
- 5,375
- Last commit
- Oct 6, 2026
- Latest release
- version/2026.8.3Sep 17, 2026
- Created
- Dec 30, 2019
- License
- MITOpen source
Data from the GitHub API, refreshed daily.
About authentik
Flexible identity provider and SSO platform with OAuth2, SAML, LDAP and proxy outposts. authentik is open source under the MIT license and written mainly in Python, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 25,859 stars and 2,058 forks on GitHub, with 5,375 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.
Topics
- saml
- saml-idp
- saml-sp
- oauth2
- oauth2-server
- oauth2-client
- oidc
- oidc-provider
- oidc-client
- sso
Open-source alternative to
authentik can replace these commercial products. Compare every option on each page.
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authentik compared
Head-to-head comparisons with a clear verdict on when to pick authentik.
Keycloak vs authentik
Pick Keycloak for an enterprise-grade, Apache-licensed identity server with deep standards support; pick authentik for a friendlier UI, visual flows and a built-in proxy for homelab apps.
authentik vs Authelia
Pick authentik for a full identity provider with user management UI, SAML and LDAP; pick Authelia for a lightweight Go forward-auth portal that adds 2FA in front of your reverse proxy.
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What is authentik?
authentik is a free, open-source app you can host on your own server, listed in our Identity & SSO category. Flexible identity provider and SSO platform with OAuth2, SAML, LDAP and proxy outposts. The source code lives at github.com/goauthentik/authentik, where it has 25,859 stars.
Is authentik free and open source?
Yes. authentik is open-source software released under the MIT license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run authentik with Docker?
Yes. authentik provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. Our step-by-step deploy guide covers the Compose file, HTTPS and backups.
What are the best alternatives to authentik?
Popular self-hosted alternatives to authentik include Keycloak, Authelia and SuperTokens. authentik itself is a self-hosted alternative to Auth0 and Okta.
Is authentik actively maintained?
The most recent commit to authentik was on Oct 6, 2026 with 5,375 commits in the past twelve months. The latest release is version/2026.8.3, published Sep 17, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.