About ScreenLab
Professional display diagnostics should not require expensive equipment or specialized software. We built ScreenLab to make comprehensive screen testing free and accessible to everyone.
What we do
ScreenLab is a collection of 39 free, browser-based tools for testing and diagnosing display issues. Whether you just bought a new monitor and want to check for dead pixels, need to calibrate colors for photo editing, or want to verify your OLED panel for burn-in, we have a tool for that.
Every tool runs entirely in your browser. No downloads, no plugins, no registration. Open a tool, go fullscreen, and start testing. It works on any device with a modern browser, from phones to ultra-wide monitors.
Our tools cover
Pixel Detection
Dead pixel tests, stuck pixel fixers, backlight bleed detection
Color Calibration
Color accuracy, gradient tests, gamma calibration, RGB mixing
Motion Performance
Motion blur, response time, refresh rate, PWM flicker
OLED Care
Burn-in detection, screensavers, dark screen, multi-color flash
Display Info
Screen info, text clarity, viewing angle, aspect ratio
Games & Fun
Reaction time, click speed, aim trainer, bouncing screensaver
Privacy
ScreenLab does not collect personal data. All tests run locally in your browser. We do not track your test results, store your screen information, or require any account. The site uses Google AdSense for advertising, which may set cookies per Google policies.