WebUSB Test

Check whether the browser exposes the WebUSB API.

🔒 Local-first◉ Modern browser recommended.

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WebUSB TestConnectivity & Hardware APIs

Local-first

Ready

Hardware connections dashboard

API → Permission → Device → Connection → Data. Availability and permission are not evidence of hardware health. Access starts only after your action.

API	API supported	HTTPS	Permission	Requires gesture	Selected device	Connection	Data received	Final status

Unsupported · Prompt · Granted · Denied · HTTPS required · User action required · Policy blocked · No device

Selected test

Vendor ID filter (optional)

Exposed by browser—

Secure context—

Selected device—

No USB transfers are performed. Open, configuration and interface claims may still change device state or conflict with another application.

I understand USB state changes and selected the correct device.

ConfigurationInterface

Browser-reported details

Logs may contain sensitive device data. Export is local and explicit; no upload or automatic persistence. Summary omits product names, device IDs and report bytes. Stop or hide this page to release connections.

How it works

Use the interactive panel above and watch the live measurements. Results depend on events and capabilities exposed by your browser.

Runs in your browser

Core tests are processed locally in your browser. Camera and microphone streams are not intentionally uploaded by Testvexa.

FAQ

Does this test upload my input?

Core interaction is processed in your browser. Testvexa does not intentionally upload camera or microphone streams.

Can browser limitations affect the result?

Yes. Browsers expose different hardware APIs, so unsupported access is not the same as faulty hardware.