Windows only: SourceEdit is a feature rich text editor geared towards programmers. The editor has support for dozens of programming languages and their accompanying formatting and syntax. The HTML purists among you will be pleased to see the support for launching previews of your HTML code in your default system browser directly from SourceEdit. The interface is extremely customizable, you can edit the colour of tags, operators, and other code components to make them stand out. The File Mapping feature ensures the modifications you made to the layout and colour scheme is recalled based on the file type you're working on. If you have one set of colour coding for C++ editing and one for HTML, SourceEdit will automatically load them when you open either file type. If you frequently cut and paste or just need to compare portions or version of the code you're writing, SourceEdit supports up to four panes of code at once. SourceEdit is freeware, Windows only.