Screen Test
Inspect a monitor or phone screen with nine solid colors. Click or press Space to switch colors and look for fixed bright, dark or colored pixels.
How to use
Inspect a monitor or phone screen with nine solid colors. Click or press Space to switch colors and look for fixed bright, dark or colored pixels.
Steps
- Clean the screen to reduce interference from dust and marks.
- Start the test and inspect each solid color. Click the screen or press Space to change colors.
- Look for abnormal pixels at fixed positions. Press Esc or use the exit button when finished.
Supported formats
Displays solid colors on the current screen without file uploads. No automatic diagnostic report is generated.
Files and privacy
Colors are displayed in your current browser. The tool does not read screen pixels, take photos or upload test images.
Limitations
- Results require visual inspection. The tool does not automatically detect or repair faulty pixels.
- Fullscreen availability depends on the browser. Testing can still run within the web page.
- Scaling, brightness, ambient light and marks on the screen affect inspection.
Frequently asked questions
Can it automatically detect or repair dead pixels?
No. The page supplies solid colors to help you inspect pixels. It does not read hardware diagnostics or perform repairs.
How do I exit the test?
Press Esc or use the exit button. In browser fullscreen mode, Esc may first exit fullscreen.