UtilityBaseDevice Tests
Device tests verify that your hardware actually works before an important call, a gaming session, or a warranty return. Check every key on a keyboard, confirm all mouse buttons register, watch a live microphone level meter, preview your webcam, and play channel-separated speaker tones. All tests run locally in your browser: audio and video never leave your device.
Keyboard Tester
Press any key to see it light up. Find dead keys and check key codes.
Device Tests
Microphone Tester
Check your mic with a live level meter. Nothing is recorded.
Device Tests
Gamepad Tester
Test every button, trigger, and stick on your controller, with stick drift detection.
Device Tests
Internet Speed Test
Download, upload, latency, and jitter, measured to a real CDN edge.
Device Tests
Click Speed Test
Measure your clicks per second (CPS) over 5, 10, or 30 seconds.
Device Tests
Reaction Time Test
Measure your reaction time over five rounds, and post it to the ranked leaderboard.
Device Tests
Webcam Tester
Preview your camera live, switch devices, and grab a snapshot. Nothing is stored.
Device Tests
Mouse Tester
Test every mouse button, scroll wheel, and double-click behavior.
Device Tests
Hearing Frequency Test
Find the highest frequency you can hear, from 8 kHz up to 20 kHz.
Device Tests
Mouse Polling Rate Test
Measure your mouse's polling rate in Hz. Move it in the box and read the report rate.
Device Tests
Speaker Test
Play left, right, stereo, and phase-inverted tones to verify speakers and headphones.
Device Tests
Touchscreen & Multi-Touch Tester
Test your touchscreen for dead zones and ghost touches, and see how many simultaneous touches it registers.
Device Tests
Vocal Range Test
Sing your lowest and highest notes to measure your vocal range and find your closest voice type.
Device Tests
Online Tone Generator
Generate a pure tone at any frequency, sine, square, triangle, or sawtooth, with presets and a sweep.
Device Tests
Audio Spectrum Analyzer
Live FFT of your microphone, log frequency bands, peak readout, note detection.
Device Tests
Spacebar Counter
Count spacebar presses in free or timed mode, with presses-per-second and a saved best score.
Device Tests
Refresh Rate Test
Measure your display's actual refresh rate in real time.
Device Tests
Mouse Double-Click Test
Detect a chattering mouse switch by timing the gap between your clicks.
Device Tests
Keyboard Rollover / NKRO Test
Find how many keys your keyboard registers at once, 6KRO or full NKRO.
Device Tests
Mouse Scroll Test
Check your scroll wheel for skipped notches, reverse scrolling, and phantom input.
Device Tests
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Frequently asked questions
Are my microphone or webcam streams recorded?
No. The tests render your audio level and video preview locally in the browser. Nothing is transmitted, recorded, or stored on any server.
Why does my browser ask for permission?
Browsers require explicit permission before any page can access a microphone or camera. The permission applies only to this site and can be revoked at any time from your browser settings.
A test says my device isn't detected. What should I check?
Make sure the device is plugged in and selected as the default in your operating system, that no other app is holding exclusive access, and that you granted the browser permission. Reloading the page after fixing these usually resolves it.