Tool index

Every tool on Black Screen Free.

13 self-contained tools, each one a static page with a handful of kilobytes of JavaScript. All client-side, all free, all available offline once you have visited them.

Screens Testing Pranks Utilities

Screens

Fullscreen solid colours for light, dark and everything in between.

3 tools

Pure Black Screen

Instant #000000, fullscreen, no lag

Open

White Screen

Maximum brightness, clean white light

Open

Colour Screen Suite

12 presets + any custom HEX

Open

Testing

Find dead pixels, burn-in, mura and banding before you buy or return a display.

2 tools

Dead Pixel Test

Auto-cycling solid colours + pixel grid

Open

Screen Uniformity & Burn-in Test

Grey steps, banding and uniformity

Open

Pranks

Cracked screens, digital rain, fake updates and bouncing logos.

4 tools

Broken Screen Prank

Cracked glass illusion, fullscreen

Open

Matrix / Hacker Screen

Customisable digital rain

Open

Fake Update Screen

Windows, macOS, Linux and BIOS

Open

DVD Screensaver

Bouncing disc with your own logo

Open

Utilities

Lighting, noise, exports and the tools that keep a screen awake.

4 tools

White Noise & Static

Animated TV static, optional audio

Open

Video Call Lighting

Warm, neutral and cool white fills

Open

Download Colour Image

480p to 8K and custom sizes

Open

Keep Screen Awake

Block sleep with the Wake Lock API

Open

Start with the black screen.

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