head to head · open source
Better Auth vs fido2-net-lib
Better Auth has 30,583 GitHub stars, 3,060 forks, 723 open issues and last shipped yesterday. fido2-net-lib has 1,458 stars, 201 forks, 20 open issues and last shipped 2 days ago. Better Auth leads on adoption by 1,998% (30,583 vs 1,458 stars). Better Auth is written in TypeScript under MIT; fido2-net-lib is written in C# under MIT. Better Auth has attracted 10% as many forks as stars, fido2-net-lib 14%. Better Auth was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | fido2-net-lib | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 1.5K |
| License | MIT | MIT |
| Written in | TypeScript | C# |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 3.1K | ⑂ 201 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Better Auth if
- You weight community size — 31K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick fido2-net-lib if
- You want the fido2-net-lib feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and fido2-net-lib fits your workflow better
About Better Auth
Discord · Website · Issues Better Auth Better Auth is a framework agnostic authentication (and authorization) framework for TypeScript. It provides a comprehensive set of features out of the box and includes a plugin ecosystem that simplifies adding advanced functionalities with minimal code in a short amount of time. Whether you need 2FA, multi tenant support, or other complex features, it lets you focus on building your actual application instead of reinventing the wheel. Why Better Auth Authentication in the TypeScript ecosystem is a half solved problem. Other open source libraries often require a lot of…
read the full Better Auth overview →
About fido2-net-lib
Passkeys FIDO2 .NET Library (WebAuthn) A fully working and battle tested library for passkeys (FIDO2 and WebAuthn) on .NET Releases & Change log 💡 Bitwarden Passwordless API The quickest way to get started with FIDO2 and WebAuthn is with the Bitwarden Passwordless API. It's free up to 10k users and a faster way to start using passkeys on your website or mobile app. Bitwarden Passwordless.dev supports .NET Framework as well as the latest .net 8+. Get started with passwordless.dev Purpose Our purpose is to enable passwordless sign in for all .NET apps (asp, core, native). To provide a developer friendly and well…
read the full fido2-net-lib overview →
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Frequently asked questions
Is Better Auth or fido2-net-lib more popular?
Better Auth has 30,583 GitHub stars and fido2-net-lib has 1,458. Better Auth has the larger community by that measure.
Are Better Auth and fido2-net-lib free?
Both are open source. Better Auth is licensed under MIT and fido2-net-lib under MIT. Neither carries a licence fee.
What is the difference between Better Auth and fido2-net-lib?
Better Auth is written in TypeScript and fido2-net-lib in C#. 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 fido2-net-lib?
Choose Better Auth if you want the larger community (30,583 stars) or its MIT licence terms. Choose fido2-net-lib if its feature set, stack or MIT licence fits better. Both are self-hostable.