# Passkeys Debugger - WebAuthn response parser and passkey tester

> Passkeys Debugger is a free Corbado-operated tool for testing passkey ceremonies, parsing WebAuthn responses and reproducing browser, device and authenticator behavior.

## Core pages

* [Passkeys Debugger](https://www.passkeys-debugger.io/) - Interactive WebAuthn tester for registration and authentication ceremonies. Use it to configure server options, create or sign in with a passkey, inspect generated responses and understand failure modes.
* [How to test passkeys](https://www.passkeys-debugger.io/how-to) - Practical guides for testing platform authenticators and security keys with passkeys.
* [Security key test](https://www.passkeys-debugger.io/how-to/security-key-test) - Test a YubiKey, Titan Key or any FIDO2 key: a prepared ceremony (/?preset=security-key) and how to read user verification, transports, attestation, firmware and FIDO certification.
* [Platform authenticator test](https://www.passkeys-debugger.io/how-to/test-platform-authenticator) - Test Face ID, Touch ID, Windows Hello or Android: a prepared ceremony (/?preset=platform-authenticator) and how to read the provider and synced or device-bound passkeys.
* [Automatic passkey upgrade test](https://www.passkeys-debugger.io/how-to/automatic-passkey-upgrade-test) - Test conditional create (create() with mediation: "conditional") after a password manager login, with a prepared dialog (/?preset=automatic-upgrade&cc=start) and why browsers refuse silently.
* [WebAuthn Signal API test](https://www.passkeys-debugger.io/how-to/webauthn-signal-api-test) - Send signalUnknownCredential() for a test passkey (/?preset=signal-api) and check whether Google Password Manager or iCloud Keychain removes it, with browser support and known issues.
* [Technical details](https://www.passkeys-debugger.io/technical-details) - Concise explanations of relying party IDs, resident keys, conditional UI, native app passkeys and common WebAuthn configuration topics.
* [Authentication observability](https://www.passkeys-debugger.io/authentication-observability) - The authentication KPIs large passkey rollouts track (enrollment, passkey usage, error and drop-off rates, time to authenticate) with links to the KPI definitions and to guides on authentication observability.

## Corbado context

* [Corbado](https://www.corbado.com/) - Enterprise passkey intelligence platform for CIAM teams.
* [Corbado Observe](https://www.corbado.com/observe) - Passkey observability for teams that keep their existing identity provider and want to see where passkey adoption stalls, why users drop off and what to fix.
* [Corbado Connect](https://www.corbado.com/connect) - Managed passkeys with built-in analytics for organizations that want Corbado to run the passkey layer while their existing IDP stays in place.