Use MonitorTest to detect issues with color, brightness, contrast, and dead pixels. No installation required, free to use, and supports full-screen mode.
MonitorTest is a tool for testing screen quality such as
dead pixels, color issues, brightness, and contrast. Key benefits:
easy to use, full-screen mode, no installation needed. Suitable for all devices:
computers, laptops, external monitors, televisions. Free and accessible.
How to use
Test your monitor in a few steps – no installation needed
🔧 Steps:
- Open the website:
Visit:
monitortest.kiemtranhanh.com
- Select a test mode:
- Dead pixel test
- RGB color test
- Gradient test
- Brightness / contrast test
- Sharpness / text clarity test
- Click “Fullscreen”
Press F11 or click the full-screen icon.
- Carefully check the screen
Look over the entire screen:
- Color inconsistencies
- Black or white dots (dead pixels)
- Uneven gradients
- Press Esc to exit