head to head · open source
SuperTokens vs casdoor
SuperTokens has 15,315 GitHub stars, 842 forks, 155 open issues and last shipped 2 days ago. casdoor has 14,434 stars, 1,818 forks, 97 open issues and last shipped yesterday. SuperTokens leads on adoption by 6% (15,315 vs 14,434 stars). SuperTokens is written in Java under a custom or non-standard licence; casdoor is written in Go under Apache-2.0. SuperTokens has attracted 5% as many forks as stars, casdoor 13%. casdoor was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (authentication, oauth), 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
| SuperTokens | casdoor | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 14K |
| License | Custom / other | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-09-18 | 2026-09-19 |
| Forks | ⑂ 842 | ⑂ 1.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SuperTokens if
- You weight community size — 15K stars and counting
- You want the Custom / other license terms
- Your stack matches Java
- 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 SuperTokens
SuperTokens is an open source authentication and session management platform for applications that need login, sign up, sign out, and user data control. It sits in the identity and access management ecosystem and is described as an alternative to Auth0, Firebase Auth, and AWS Cognito. It separates work into a frontend SDK, a backend SDK, and a Java based SuperTokens Core service that handles authentication logic and database operations.
read the full SuperTokens 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 SuperTokens or casdoor more popular?
SuperTokens has 15,315 GitHub stars and casdoor has 14,434. SuperTokens has the larger community by that measure.
Are SuperTokens and casdoor free?
Both are open source. SuperTokens 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 SuperTokens and casdoor?
SuperTokens is written in Java 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, SuperTokens or casdoor?
Choose SuperTokens if you want the larger community (15,315 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.