head to head · open source
Sa-Token vs voidauth
Sa-Token has 19,059 GitHub stars, 2,914 forks, 111 open issues and last shipped 2 days ago. voidauth has 2,843 stars, 124 forks, 60 open issues and last shipped 3 days ago. Sa-Token leads on adoption by 570% (19,059 vs 2,843 stars). Sa-Token is written in Java under Apache-2.0; voidauth is written in TypeScript under AGPL-3.0. Sa-Token has attracted 15% as many forks as stars, voidauth 4%. Sa-Token was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (sso), 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
| Sa-Token | voidauth | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 2.8K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Java | TypeScript |
| Last push | 2026-09-23 | 2026-09-22 |
| Forks | ⑂ 2.9K | ⑂ 124 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sa-Token if
- You weight community size — 19K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick voidauth if
- You want the voidauth feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and voidauth fits your workflow better
About Sa-Token
Sa Token is a free, open source, one stop Java authentication and authorization framework, licensed under Apache 2.0, that gives Java and Spring Boot developers login authentication, permission checks, distributed sessions, single sign on, OAuth2.0, gateway authentication, JWT integration, API key authorization and API parameter signing from a single dependency.
read the full Sa-Token overview →
About voidauth
VoidAuth is an open source, self hosted single sign on and user management provider, written in TypeScript under the AGPL 3.0 licence, that places one authentication service in front of the self hosted applications of homelab operators, self hosters and small teams.
read the full voidauth overview →
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Frequently asked questions
Is Sa-Token or voidauth more popular?
Sa-Token has 19,059 GitHub stars and voidauth has 2,843. Sa-Token has the larger community by that measure.
Are Sa-Token and voidauth free?
Both are open source. Sa-Token is licensed under Apache-2.0 and voidauth under AGPL-3.0. Neither carries a licence fee.
What is the difference between Sa-Token and voidauth?
Sa-Token is written in Java and voidauth in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Sa-Token or voidauth?
Choose Sa-Token if you want the larger community (19,059 stars) or its Apache-2.0 licence terms. Choose voidauth if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.