One click. All screen.
Choose a color or display, then go full screen. Move your pointer to reveal controls. Tap once to reveal; tap again or press Escape to exit.
Color Screen — free full-screen color, image and display testing tool
Quick launch
Choose Your Screen
Choose a color, image, or special screen and display it full-screen.
Make it your color
Pick a color or fine-tune its values. Your preview updates live.
A picture, without distractions
JPG, PNG, WEBP or GIF · Up to 25 MB · Stays on your device
Drop an image here
or choose an image from your deviceYour images and colors are processed locally in your browser. Images are not uploaded to a server.
A pattern for every purpose
Inspect alignment, create a backdrop, or build your own gradient.
Just a little make-believe
Visual prank only — nothing is actually changed. Use with permission; every screen can be dismissed with Escape.
Fictional screens, real customization
Novelty simulations only. No system changes, downloads, or sign-ins.
Fictional visual display only — your computer is not updating, locked, or in danger.
Know your display
Select a test to inspect dead pixels, uniformity, gradients, or contrast.
These are visual tools, not professional hardware diagnostics. RGB Test changes color every two seconds. Use solid colors if you are sensitive to changing light. Tests do not repair pixels.
Recent Colors
Favorites
Display controls
Recent screens
Made for your everyday
A soft light for your next photo, a backdrop for a call, or a quick monitor check. Works on desktop, tablet, and phone.
Your screen. Your privacy.
Your images and colors are processed locally in your browser. Images are not uploaded to a server. No tracking. No account.