head to head · open source
Better Auth vs voidauth
Better Auth has 30,071 GitHub stars, 2,906 forks, 723 open issues and last shipped yesterday. voidauth has 2,843 stars, 124 forks, 60 open issues and last shipped 3 days ago. Better Auth leads on adoption by 958% (30,071 vs 2,843 stars). Better Auth is written in TypeScript under MIT; voidauth is written in TypeScript under AGPL-3.0. Better Auth has attracted 10% as many forks as stars, voidauth 4%. Better Auth was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (authentication, oidc, 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
| Better Auth | voidauth | |
|---|---|---|
| GitHub stars | ★ 30K | ★ 2.8K |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-24 | 2026-09-22 |
| Forks | ⑂ 2.9K | ⑂ 124 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Better Auth if
- You weight community size — 30K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- 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 Better Auth
Better Auth is a framework agnostic authentication and authorization framework written in TypeScript. It targets the broader JavaScript/TypeScript ecosystem and is designed to integrate with any backend or frontend framework, including Next.js, Express, SvelteKit, and others. It provides a unified API surface for core identity workflows such as sign up, sign in, session management, and passwordless flows.
read the full Better Auth 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 Better Auth or voidauth more popular?
Better Auth has 30,071 GitHub stars and voidauth has 2,843. Better Auth has the larger community by that measure.
Are Better Auth and voidauth free?
Both are open source. Better Auth is licensed under MIT and voidauth under AGPL-3.0. Neither carries a licence fee.
What is the difference between Better Auth and voidauth?
Better Auth is written in TypeScript 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, Better Auth or voidauth?
Choose Better Auth if you want the larger community (30,071 stars) or its MIT licence terms. Choose voidauth if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.