head to head · open source
Authentik vs casdoor
Authentik has 26,232 GitHub stars, 2,108 forks, 1,074 open issues and last shipped yesterday. casdoor has 14,757 stars, 1,887 forks, 97 open issues and last shipped yesterday. Authentik leads on adoption by 78% (26,232 vs 14,757 stars). Authentik is written in Python under a custom or non-standard licence; casdoor is written in Go under Apache-2.0. Authentik has attracted 8% as many forks as stars, casdoor 13%. Authentik was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (authentication), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Authentik | casdoor | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 15K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 2.1K | ⑂ 1.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Authentik if
- You weight community size — 26K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick casdoor if
- You want the casdoor feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and casdoor fits your workflow better
About Authentik
What is authentik? authentik is an open source Identity Provider (IdP) for modern SSO. It supports SAML, OAuth2/OIDC, LDAP, RADIUS, and more, designed for self hosting from small labs to large production clusters. Our enterprise offering is available for organizations to securely replace existing IdPs such as Okta, Auth0, Entra ID, and Ping Identity for robust, large scale identity management. Installation Docker Compose: recommended for small/test setups. See the documentation. Kubernetes (Helm Chart): recommended for larger setups. See the documentation and the Helm chart repository. AWS CloudFormation: deploy…
read the full Authentik overview →
About casdoor
An open source, self hosted identity and access management platform Casdoor is a single sign on (SSO) and authentication server with a web console. It speaks OAuth 2.0 , OIDC , SAML 2.0 , CAS , LDAP , SCIM 2.0 , WebAuthn , TOTP/MFA and MCP , and connects to Google Workspace, Microsoft Entra ID (Azure AD), GitHub and many other identity providers. Website · Documentation · Live demo · Discord The sign in page your users see: password, email/SMS code, WebAuthn and Face ID, plus every social provider you enable. Admin console. Users, tokens, organizations and providers at a glance…
read the full casdoor overview →
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Frequently asked questions
Is Authentik or casdoor more popular?
Authentik has 26,232 GitHub stars and casdoor has 14,757. Authentik has the larger community by that measure.
Are Authentik and casdoor free?
Both are open source. Authentik has no licence declared in this registry, and casdoor is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Authentik and casdoor?
Authentik is written in Python and casdoor in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Authentik or casdoor?
Choose Authentik if you want the larger community (26,232 stars) or its Custom / other licence terms. Choose casdoor if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.