About

Dead Pixel Test is a free, no-sign-up web tool. It fills your screen with solid colors so dead, stuck and hot pixels, and uneven backlight, are easy to spot.

Everything runs locally in your browser. What you type, paste or choose is never sent to a server, so there is nothing for us to store or leak. The site is supported by ads.

Built and maintained by GlowHalo. Bug reports and ideas: contact us.