Question 1

What is Screen Pixel?

Accepted Answer

Screen Pixel is a free, browser-based collection of 25+ visual screen effects, classic screensavers, retro TV simulations, and monitor test tools. It works on any device with a web browser — no downloads or sign-ups needed.

Question 2

How do I test my monitor for dead pixels?

Accepted Answer

Open screenpixel.dev and use the solid color screens (White, Black, Red, Green, Blue, etc.) in fullscreen mode. Press F to go fullscreen, then use arrow keys to cycle through colors. Look for pixels that don't match the displayed color.

Question 3

Is Screen Pixel free?

Accepted Answer

Yes, Screen Pixel is completely free with no ads, no sign-ups, and no downloads required. It runs entirely in your browser.

Question 4

Does Screen Pixel work on 4K displays?

Accepted Answer

Yes. All effects are optimized for resolutions up to 8K (7680×4320). The Plasma effect uses hardware-accelerated upscaling, and images in the gallery render at full device pixel ratio for crisp 4K display.

Question 5

Can I use Screen Pixel as a screensaver?

Accepted Answer

Yes. Open any effect, press F for fullscreen, and leave it running as an ambient screensaver. Effects like Matrix Rain, Starfield, Lava Lamp, and Count the Sheep are popular choices for ambient displays.