Fido2 GitHub Repositories (2026) · Open Source Tools

Single Sign-On Identity & Access Management via OpenID Connect, OAuth 2, PAM

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.

FIDO2 Conformant WebAuthn and Passkey backend library for golang

Passkeys, FIDO2 and WebAuthn .NET library.

ZITADEL - Identity infrastructure, simplified for you.

OpenSK is an open-source implementation for security keys written in Rust that supports both FIDO U2F and FIDO2 standards.

WebAuthn ruby server library ― Make your Ruby/Rails web server become a conformant WebAuthn Relying Party

Turn a $5 Raspberry Pi RP2350 board into an open-source hardware passkey: WebAuthn/FIDO2 logins, ssh & git signing, OpenPGP, PIV, TOTP. Rust firmware, no_std.

WebAuthn and passkeys for PHP and Symfony.

A Jellyfin plugin that adds native two-factor authentication (TOTP, email OTP) with trusted device tokens, TV device pairing, LAN bypass, and API key bypass. Server-side enforcement — works with all clients including web, mobile, TV, and service integrations like Sonarr/Radarr.

WebAuthn (Passkeys) library for .NET.

Self-hosted certificate authority with a web UI: ACME, SCEP, EST, OCSP, CRL, SSH CA, Windows autoenrollment and network discovery.

FIDO2-certified passkey server