IsMyLcdOK is a small program to easily check for dead/paralysed/stuck pixels on LCD monitors. There’s not much to it: Just run and then walk through the battery of onscreen tests designed to isolate any problem pixels. The only trouble is it’s Windows only.

There are some alternatives for other platforms, but I decided to make a cross platform solution, and what could be more cross platform than HTML (admittedly with some javascript). Feel free to try it out here: Check my LCD - Just click anywhere on the screen that loads to rotate through the tests, you’ll also get better results using your browser’s full-screen mode.