ZITADEL - Identity infrastructure, simplified for you.

The Complete Authentication and User Management Solution for the Passkey Era. Open Source Alternative to Clerk, Auth0, et al.

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

Solo 1 firmware in C

Directory Services Internals (DSInternals) PowerShell Module and Framework

🔐 A curated list of awesome WebAuthn and Passkey resources

FIDO2 .NET library for FIDO2 / WebAuthn Attestation and Assertion using .NET

WebAuthn (FIDO2) server library written in Go

Python library and command line tool for configuring any YubiKey over all USB interfaces.

Pythonic WebAuthn 🐍

Webauthn/FIDO2 library in golang

🔏 A small WebAuthn API wrapper that translates to/from pure JSON using base64url.

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

Provides library functionality for FIDO2, including communication with a device over USB or NFC.

Pluggable Authentication Module (PAM) for U2F and FIDO2

FIDO2(WebAuthn) server officially certified by FIDO Alliance and Relying Party examples.

A simple PHP WebAuthn (FIDO2/Passkey) server library

A portable Java library for WebAuthn(Passkeys) server side verification

Provides library functionality for FIDO 2.0, including communication with a device over USB.

FIDO-U2F / FIDO2 / Webauthn Framework