Comprehensive collection of free testing tools to verify electronics before buying
Check your screen for dead or stuck pixels by cycling through solid colors.
Start TestDetect image retention and burn-in on OLED displays with gray-level patterns.
Start TestTest color gradients, grayscale reproduction, and check for color banding.
Start TestCheck your monitor's refresh rate and test for motion clarity and tearing.
Start TestDetect light leakage and IPS glow on LCD monitors with dark screen tests.
Start TestTest left and right audio channels for proper separation and balance.
Start TestTest the full frequency range from 20Hz to 20kHz for audio quality.
Start TestTest all keys, detect stuck or dead keys, perfect for mechanical keyboards.
Start TestTest game controllers for analog stick drift and button responsiveness.
Start TestComprehensive testing suite for mobile devices including battery, sensors, and more.
Coming SoonSecure data deletion tools to prepare devices for resale.
Coming SoonCheck battery capacity, health, and charging performance.
Coming SoonTest internet connection speed and network performance.
Coming SoonTest camera functionality, focus, and image quality.
Coming SoonBenchmark SSD and HDD read/write speeds.
Coming SoonJoin thousands of smart buyers who test before they purchase