Run fullscreen solid color, gradient and checkerboard screens to find dead pixels and backlight bleed.
Solid red, green, blue, white and black screens make stuck or dead pixels easy to spot.
The pure black screen reveals uneven backlight glow, best viewed in a dark room.
The grayscale gradient and checkerboard expose color casts, banding and contrast issues.
Click or press ←/→ to switch screens. Press ESC or the exit button to finish.
Everything is processed locally in your browser. Nothing you enter is uploaded.
Everything is processed locally in your browser. Nothing you enter is uploaded.
Responsive controls for desktop, tablet and mobile.
No. This tool runs locally in your browser and does not store your input.