OS X Software: JChecker

Giving BBEdit a run for its money, JChecker is a brilliant html text editor with a built-in code validator. The app also has sixteen HTML / XHTML dictionaries, DTD auto-generated dictionaries, auto HTML error correction, and a link checker. While some of the latter features are common among BBEdit and other html apps, the addition of an inline validator makes JChecker unique, and quite powerful for those who strive for pitch-perfect html source code. Which, in a perfect world, would be everyone.