Browser capability test
Inspect browser hints and the APIs available to this page without requesting media access.
Diagnostic visuals retain their original colors and remain visible. Presentation filters and high contrast apply outside this workspace; device-level filters may still affect your observation.
Choose Read browser information to view capability availability and current screen context.
Enable JavaScript to run this interactive test. The guide and methodology below remain available.
How to run this check
Choose Read browser information to view capability availability and current screen context.
Understand the result
PASS describes a received signal or your recorded observation. WARNING calls for another check. USER REVIEW REQUIRED means a measurement alone cannot decide. An unavailable API or denied permission does not establish hardware failure.
What this cannot tell you
API availability does not prove that a device is present or functioning. Browser identity hints may be reduced.
If something seems wrong
Use a current browser in a normal HTTPS tab; check organization restrictions for missing APIs.
Understanding browser permissions →Good to know
Is anything uploaded?
Raw diagnostic input and media are processed locally. Standalone results remain in page memory. Guided checks offer optional coarse session recovery for 24 hours; it excludes media and detailed measurements. Hosting and Google Analytics requests still leave your browser. Analytics receives only broad test-usage categories, never these diagnostic contents. See the privacy policy.
Does a pass guarantee my hardware is healthy?
No. It records behavior observed in this browser session. Intermittent faults, internal components and operating-system restrictions need further investigation. See our methodology.
Related checks
Screen information
Read screen and viewport dimensions, pixel ratio and orientation.
Start Test Network & SystemDevice & browser information
Read basic browser capabilities, battery and network information where exposed.
Start Test Network & SystemBrowser permission checker
Read camera, microphone and notification permission states without prompting for access.
Start Test Network & SystemBattery information
Read exposed charge and charging status without claiming battery health.
Start Test