WebAuthn Awesome

A curated list of awesome WebAuthn/FIDO2 resources

Demos

FIDO WebAuthn Demo - FIDO Alliance WebAuthn Demo
DUO WebAuthn Demo - A Demonstration of the WebAuthn Specification https://webauthn.io/
Mastercard WebAuthn Demo - Webauthn/FIDO2 Relying Party Reference Implementation
Adam Powers WebAuthn Demo - A set of FIDO2 / WebAuthn demo servers. Live: https://webauthn.org
Anders Åberg .NET library for FIDO2 - A working implementation library + demo for FIDO2 and WebAuthn using .NET. https://fido2.azurewebsites.net/
Auth0 WebAuthn Demo - Probably the best WebAuthn flow demo
Google WebAuthn Demo - An example Java Relying Party implementation of the WebAuthn specification. https://webauthndemo.appspot.com
Yubico WebAuthn Demo - Provides technical details of WebAuthn data flow and includes a playground to test a U2F/FIDO2 key as a second factor or passwordless key.
jcjones WebAuthn.bin.coffee DEMO - A simple site for testing Web Authentication https://webauthn.bin.coffee/

DUO: A WebAuthn Python module - PyWebAuthn is a Python module which can be used to handle WebAuthn registration and assertion.
Yubico: Java WebAuthn Server - Server-side Web Authentication library for Java.
Adam Powers: FIDO2 lib
Anders Åberg: .NET library for FIDO2 - A working implementation library + demo for fido2 and WebAuthn using .NET
Nov Matake: Ruby WebAuthn Lib - W3C Web Authentication API (a.k.a. WebAuthN / FIDO 2.0) RP library in Ruby
Yoshikazu Nojima: WebAuthn4J - A portable Java library for WebAuthn server side verification
Yubico: python-fido2 - FIDO2 Client and Server lib
cedarcode: WebAuthn Ruby - Ruby implementation of a WebAuthn Relying Party
Tangui: Wax - Elixir implementation of WebAuthn

Yubico: python-fido2 - Client Lib to talk to a hardware authenticators over USB HID
Yubico: libfido2 - C client library and command-line tools to communicate with a FIDO device over USB, and to verify attestation and assertion signatures.
Lyo Kato: iOS Webauthn Kit - This library provides you a way to handle W3C Web Authentication API (a.k.a. WebAuthN / FIDO 2.0) easily.

Conor Patrick: U2F Zero - U2F Zero is an open source U2F token for 2 factor authentication.
SoloKeys - Solo is an open source FIDO2 security key, and you can get one at solokeys.com.

Getting started with WebAuthn - コミックマーケット95で頒布した同人誌「Getting started with WebAuthn」の電子版(PDF)です。