- Display InfoLive readout of your screen resolution, pixel density, refresh rate, color capabilities, and input features.display infoscreen resolutionmonitor infodpi checker
- Gamepad TesterTest every button, trigger, and analog stick on a connected gamepad, and quantify analog stick drift precisely.gamepad testergamepad api test
- Key Rollover TesterCheck N-key rollover and ghosting visually by holding down keys and watching a live diagram.key rollover testnkro test6kro testanti ghosting test
- Keyboard Layout HeatmapShow per key press counts and finger load for any pasted text, compared across ten common keyboard layouts.keyboard heatmaptyping finger load
- Keycode InfoShow a live readout of every keyboard event field: key, code, legacy keyCode, active modifiers, location, and repeat state.keycodejavascript keycodekey event testerwhich vs keycode
- Media Key TesterVerify Media Session action handlers and hardware media keys, and see whether your headset or keyboard buttons actually reach the page.media key testertest media keys
- Monitor Test SuiteCheck your display for dead and stuck pixels, backlight bleed, ghosting, gradient banding, gamma, and more with a full catalog of classic test patterns.monitor testdead pixel testscreen test onlinestuck pixel test
- Mouse Polling Rate and DPI TesterMeasure a mouse's actual polling rate in Hz and real DPI from a physical move, not the numbers printed on the box.mouse hz testdpi analyzermouse button test
- Multitouch TesterVisualize simultaneous touch points, dead zones, and stylus pressure.multitouch testtouch point tester
- Oryx Layout DifferDiff two ZSA Moonlander layouts key by key from their keymap.c files.oryx layout diffzsa keymap diffqmk keymap comparekeymap.c diff tool
- Webcam & Mic TestPreview your camera, test your microphone, and watch live audio levels before a call, entirely in your browser.webcam testmic test onlinemicrophone testcamera test
- Click Speed Test (CPS)Measure clicks per second over a 5, 10, 30, 60, or 100 second window, with a peak rate and a per second breakdown.click speed testcps testclicks per secondclick counter
- Reaction Time TestMeasure visual reaction time across repeated trials, with false start detection and a comparison against typical human reaction.reaction time testreflex test