A structural diff that understands syntax
Side-by-side diff viewer, editor and merge preparer
Windows visual diff and merge for files and directories
UtilityHub is a lightweight, all-in-one desktop utility.
Yet another Linux kernel configuration comparator
Launch an external diff tool like WinMerge in Eclipse
Yet Another Diff Tool
Convert Autoduck markup to Doxygen
Pastebin is here to help you collaborate on debugging code snippets