Device Test Kit

Test your microphone online free: see a live input level meter, pick your mic and record a 5-second clip to play back. Free online mic test, nothing uploaded.

Test your webcam online free: live preview, real resolution and measured frame rate, camera switching and snapshots. Free online camera test, nothing uploaded.

Record your voice online free — pause, resume, play back and download recordings as WAV or the browser's audio format. Free online voice recorder, no upload.

Record your screen with this free online screen recorder: capture a tab, window or full screen with audio and mic, then download MP4 or WebM. No watermark.

Check your screen for dead or stuck pixels online free with fullscreen color tests, plus a stuck pixel fixer. Free online monitor and phone screen test.

Find your screen resolution online free, plus viewport size, pixel ratio, aspect ratio and browser details. Free online screen size checker.

Turn your screen into a bright white light with this free online white screen — full screen, black, red, blue and custom colors, warm/cool light and brightness.

Test your keyboard online free: every key lights up as you press it, with key codes, a rollover/ghosting counter and progress. Free online keyboard tester.

Test your clicks per second online free in 1, 5, 10, 30 or 60 seconds, with mouse, touch or spacebar. Free online CPS test and click speed test.

Take a typing test online free in 30 seconds, 1, 2 or 3 minutes. Free online typing speed test with WPM, accuracy, raw speed and error highlighting.

Test your reaction time online free: wait for green, click as fast as you can and get your average in milliseconds. Free online reflex test.