Developer Tools
5 tools- Monitor Test
Free online monitor test: solid colors, gradients, grid patterns. Find dead pixels, check backlight bleed, test screen uniformity — all in your browser.
- Dead Pixel Test
Free dead pixel test: full-screen solid colors to find stuck or dead pixels on any monitor, phone, or tablet. No download — runs in your browser.
- Screen Uniformity Test
Screen uniformity test: check for backlight bleed, uneven brightness, and color shifts. Full-screen gray and color patterns for any monitor or display.
- Response Time Test
Free monitor response time test with flying square UFO ghosting and pursuit camera bar patterns. Measure pixel response and see ghosting on your display.
- Viewing Angle Test
Monitor viewing angle test with colored wedges and grayscale ramp. Detect color shifts, brightness drop-off, and IPS glow on your display.