head to head · open source
authelia vs casdoor
authelia has 29,017 GitHub stars, 1,488 forks, 137 open issues and last shipped today. casdoor has 14,434 stars, 1,818 forks, 97 open issues and last shipped yesterday. authelia leads on adoption by 101% (29,017 vs 14,434 stars). authelia is written in Go under Apache-2.0; casdoor is written in Go under Apache-2.0. authelia has attracted 5% as many forks as stars, casdoor 13%. authelia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (authentication, mfa), 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
| authelia | casdoor | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 14K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-09-20 | 2026-09-19 |
| Forks | ⑂ 1.5K | ⑂ 1.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick authelia if
- You weight community size — 29K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- 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 authelia
Authelia is an open source authentication and authorization server written in Go that provides single sign on and multi factor authentication for web applications through a web portal, aimed at self hosters and platform teams who need to protect services sitting behind a reverse proxy.
read the full authelia overview →
About casdoor
Casdoor is an open source, self hosted identity and access management platform written in Go and licensed under Apache 2.0, which provides a single sign on and authentication server with a web console for teams that want to own their user directory rather than delegate it to a hosted provider.
read the full casdoor overview →
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Frequently asked questions
Is authelia or casdoor more popular?
authelia has 29,017 GitHub stars and casdoor has 14,434. authelia has the larger community by that measure.
Are authelia and casdoor free?
Both are open source. authelia is licensed under Apache-2.0 and casdoor under Apache-2.0. Neither carries a licence fee.
What is the difference between authelia and casdoor?
authelia is written in Go 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, authelia or casdoor?
Choose authelia if you want the larger community (29,017 stars) or its Apache-2.0 licence terms. Choose casdoor if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.