Fill the screen with a single color — white, black, red, green, blue or any custom color.
Fills the entire browser window with a single solid colour. The primary use is dead-pixel testing: cycle through white, black, red, green and blue to spot pixels that are stuck on or stuck off.
Photographers and videographers also use it as a cheap soft light or colour backdrop — a laptop screen displaying pure white at full brightness provides a soft, even fill light for close-up shots in a pinch.
For a thorough dead-pixel test, view each colour in full-screen mode (F11) at native resolution. A stuck pixel appears as a dot of a different colour against the solid background. One or two stuck pixels are common and usually fall within manufacturer tolerance.
No. Everything runs locally in JavaScript on your device — nothing is transmitted or stored.
Yes. Click a colour and the screen fills instantly — useful for testing dead pixels or as a photo backdrop. No account needed.
Once the page loads, yes — all processing happens in JavaScript on your device, with no server calls.
Vai.la turns any URL into a short link with click statistics, QR Code and your own biolink.
Vai.la is not responsible for how the tools are used or for decisions made based on their results.