Diagnostics

Test gamepad controllers (PS4, PS5, Xbox) for stuck buttons, analog drift, and t...

Check your microphone with a live waveform meter. Switch input devices, monitor...

Detect stuck or dead pixels with fullscreen color tests. Cycle through white, bl...

Test and measure audio output latency for music production, gaming, and streamin...

Verify laptop or desktop speakers with a 440 Hz reference tone or full-range fre...

Free online webcam tester tool. Test your camera, check video quality, resolutio...

Free online screen tester tool. Check your monitor for dead pixels, stuck pixels...

Free online webcam mirror tool. Use your camera as a virtual mirror for makeup a...

Free online battery tester tool. Check battery health, charging status, battery...

Free online camera-based QR code and barcode scanner. Scan QR codes, UPC, EAN, C...

Measure your monitor's actual refresh rate by analyzing frame timing with high p...