WebDevAuthn is a free Chrome add-on developed by DinoDevs. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This program is designed to help developers debug and analyze FIDO2/WebAuthn requests and responses.

With WebDevAuthn, users can capture WebAuthn requests and analyze the options associated with them. The program provides detailed information, warnings, and errors related to the WebAuthn requests, allowing developers to easily identify and fix any issues.

One of the standout features of WebDevAuthn is its ability to unpack and decode WebAuthn authenticator responses. This allows developers to gain insights into the responses and understand how they are structured.

Additionally, WebDevAuthn offers a Virtual Authenticator Device, which is OS independent. This device supports packed attestation and wrapped keys to credentials ID, providing developers with access to the private key of the generated credentials. The Virtual Authenticator Device also comes with a testing mode that allows developers to assess their implementations.

Overall, WebDevAuthn is a valuable tool for developers working with FIDO2/WebAuthn. Its ability to capture, analyze, and decode requests and responses, along with the Virtual Authenticator Device, make it a comprehensive solution for debugging and testing FIDO2 implementations.