Browser Capability Check

Test what your browser supports — WebGL, audio, geolocation, clipboard, service workers and more — in one click.

Press Run checks.

How to use

Click Run checks to test about a dozen browser capabilities instantly. Nothing leaves your device.

What does a red ✕ mean?

That feature is unavailable in this browser or blocked by settings/permissions.

Is anything sent to a server?

No — every test runs locally in your browser.

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Every tool runs 100% in your browser — no uploads, no signups. If a tool saved you time, consider supporting us with a small donation.