Complete tool set
Test every part of your monitor.
Choose a focused visual check or run the guided five-minute screen test.
Pixels
3 testsDead Pixel Test
Check your monitor for dead, stuck, or bright pixels with clean fullscreen colors.
Screen Uniformity Test
Check for dirty screen effect, uneven brightness, color tint, and edge variation.
Backlight Bleed Test
Inspect a dark LCD screen for bright corners, edge glow, clouding, and uneven black.
OLED
2 testsColor
9 testsGradient and Banding Test
Inspect grayscale and color gradients for banding, clipping, and unexpected color shifts.
Black Level Test
Check whether your display preserves near-black shadow detail without lifting black.
White Saturation Test
Check highlight detail and detect clipping in the brightest shades near white.
Monitor Color Test
Visually inspect primary, secondary, neutral, and saturation steps on your monitor.
HDR Test
Check browser HDR capability and visually inspect highlight separation and tone transitions.
RGB Test
Inspect red, green, and blue channels with solid fields and saturation steps.
sRGB Test
Inspect sRGB primaries, neutral tones, gradients, and saturation steps in the browser.
Display P3 Gamut Test
Check browser Display P3 support and compare wide-gamut colors with sRGB fallbacks.
Color Gamut Test
Compare browser sRGB and Display P3 output and inspect wide-gamut color handling.
Motion
4 testsRefresh Rate Test
Estimate the refresh cadence your browser observes and inspect frame-time stability.
Response Time Test
Observe moving edges for ghosting, overshoot, smearing, and motion clarity.
Monitor Ghosting Test
Compare motion trails and dark smearing across monitor response settings.
Screen Tearing Test
Use fast moving vertical markers to look for split frames and horizontal tearing lines.