Open source fido2 projects
Every project in the registry tagged fido2, ranked by real GitHub adoption.
Secure, customizable identity infrastructure for developers
Directory Services Internals (DSInternals) PowerShell Module and Framework
:closed_lock_with_key: multi factor authentication system (2FA, MFA, OTP, FIDO Server)
SSH-MITM - ssh audits made simple
Passkeys, FIDO2 and WebAuthn .NET library.
Single Sign-On Identity & Access Management via OpenID Connect, OAuth 2, PAM
WebAuthn ruby server library ― Make your Ruby/Rails web server become a conformant WebAuthn Relying Party
A portable Java library for WebAuthn(Passkeys) server side verification
Related tags
Frequently asked questions
How many open source fido2 projects are there?
This registry tracks 9 projects tagged fido2, with 34,054 GitHub stars between them. The most-adopted is Zitadel at 15,499 stars.
Are these fido2 projects free to use?
Yes — 9 of the 9 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which fido2 project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these fido2 projects still maintained?
9 of the 9 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.