Secure Context
Checking...
Pending

Required for biometric/passkey prompts.

WebAuthn API
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Pending

Browser API used by fingerprint login and passkeys.

Platform Authenticator
Checking...
Pending

Built-in fingerprint, face unlock, PIN, or security hardware.

Conditional UI
Checking...
Pending

Passkey autofill support in supported browsers.

Readiness Score
Fingerprint/passkey readiness 0%

Run the check to see browser and device compatibility.

Device and Browser Details
Browser
Detecting...
Operating System
Detecting...
Device Type
Detecting...
Origin
Detecting...
Protocol
Detecting...
Last Test
Not run
Diagnostic Log


This Fingerprint Sensor Test helps you check whether your browser and device are ready for fingerprint login, passkey authentication, Windows Hello, Touch ID, Face ID or another platform authenticator. It uses the official WebAuthn browser API, which is the secure standard used by modern biometric sign-in systems.

The tool does not collect or store fingerprint images. Browsers do not expose raw biometric data to websites. Instead, the device confirms whether user verification is available and can respond to a cryptographic challenge.

What This Biometric Test Checks

  • Secure context status for HTTPS, localhost, or trusted browser environments.
  • WebAuthn API support for passkeys and biometric authentication.
  • Platform authenticator availability for fingerprint, face unlock, PIN, or built-in device verification.
  • Conditional UI support for passkey autofill where available.
  • Browser, OS, device type and origin information for troubleshooting.

Why Fingerprint Test May Fail

A fingerprint sensor test can fail if the page is not loaded in a secure context, the browser does not support WebAuthn, the device has no platform authenticator, biometric login is disabled in system settings, or the user cancels the prompt. On some systems, the browser may show a PIN, face unlock, security key or passkey prompt instead of a fingerprint-only prompt.

Best Use Cases

  • Check if fingerprint login is supported before building a passkey login page.
  • Test Windows Hello, Touch ID, Face ID or Android biometric readiness.
  • Diagnose why a biometric login prompt does not appear.
  • Export a simple compatibility report for testing or support.

Frequently Asked Questions

Can this tool capture my fingerprint?

No. Browsers do not allow websites to capture fingerprint images or raw biometric data. The test only checks whether your platform authenticator can respond through WebAuthn.

Why does the prompt show PIN or face unlock instead of fingerprint?

WebAuthn asks for user verification. Your device decides whether to use fingerprint, face unlock, PIN, security key or another available verification method.

Does this work on Blogger?

Yes, the tool uses unique CSS and JavaScript names to reduce theme conflicts. WebAuthn still requires a secure browser context and a supported device.