Device Tests
Keyboard Tester
Press each key to spot dead ones on an on-screen layout, and measure how many keys register at once (rollover).
Webcam Test
Preview your camera with its resolution and frame rate. Nothing is recorded or saved.
My Device Specs
Check CPU, memory, graphics and display details without installing anything. Only values your browser reports are used, and nothing is sent to a server.
What's My IP
See your public IPv4 and IPv6 addresses and an estimated location right now. Addresses are not stored.
Internet Speed Test
Measure download and upload speed, ping and jitter to the nearest Cloudflare data center, and see whether it is enough for video, calls and gaming.
Speaker Test
Play test tones on the left, right or both channels to check your speakers or earphones.
Gamepad Tester
Connect a controller and check every button, trigger and stick, measure stick drift and dead zone, and test vibration.
Microphone Test
See whether your mic picks up sound with a live level meter and waveform, and record 5 or 10 seconds to hear yourself. Nothing is saved.
Dead Pixel Test
Show 13 full-screen test patterns — solid colors, gradients, uniformity and motion — to spot dead pixels and blotches.
Mouse Click Test
Check left, right, wheel and side buttons, double-click timing and clicks per second (CPS).
Keep the tools you use most in one place.
Saved tools are kept in this browser.