Professional Display
Testing Tools
Free online tools to test dead pixels, calibrate monitors, and optimize your display quality. No download required.
Start Testing →Quick Tool Access
Professional tools for display testing and calibration
Black Screen
Test dead pixels and clean your monitor with pure black display
White Screen
Brightness test and screen cleaning with pure white display
Dead Pixel Test
Detect stuck and dead pixels with color cycling test
Color Test
RGB color accuracy and display calibration testing
Monitor Test
Comprehensive display testing suite for professionals
Brightness Test
Calibrate screen brightness and contrast levels
Contrast Test
Test display contrast and grayscale accuracy
Pixel Fixer
Attempt to fix stuck pixels with rapid color flashing
Burn-in Prevention
Prevent OLED burn-in with screensaver patterns
Refresh Rate Test
Detect your monitor refresh rate and Hz
Screen Resolution
Detect your screen resolution and pixel density
Response Time Test
Test display response time and ghosting
Why Choose ScreenTest?
Lightning Fast
Sub-1 second load times on all devices
Mobile Optimized
Perfect experience on phones and tablets
100% Free
No signup, no download, no hidden fees
Professional
Used by designers and tech professionals