Diagnose Your Hardware
Instantly.
Free, browser-based diagnostic tools for your screen, mouse, keyboard, and audio. No downloads required.
Dead Pixel Test
Identify stuck or dead pixels with full-screen color cycles.
Burn-in Fixer
Reduce OLED/LCD image retention using rapid pattern cycling.
Refresh Rate Test
Verify your monitor's actual refresh rate in Hz.
Screen Ruler
Measure elements on your screen in pixels, cm, and inches.
Speaker Cleaner
Eject dust and water using low-frequency sound pulses.
Frequency Generator
Output pure sine tones from 20 Hz to 20,000 Hz.
Microphone Test
Real-time input level check and playback verification.
Stereo Test
Verify left and right audio channel balance and wiring.
Keyboard Test
Check for broken keys, ghosting, and NKRO limits.
Gamepad Test
Map stick precision and identify controller deadzone drift.
Double Click Test
Detect faulty mouse switches causing accidental double clicks.
Mouse Polling Rate
Measure your gaming mouse reporting frequency in Hz.
CPS Test
Benchmark your clicking speed in Clicks Per Second.
Reaction Time Test
Measure your visual human response speed in milliseconds.
Webcam Test
Diagnostic sensor check for resolution and frame rate.