Diff Checker
Diff Checker is a free online diff tool that quickly and easily gives you the text differences between two files.
SemanticMerge - The diff and merge tool that understands C#, Vb.net, Java and now C
SemanticMerge The diff and merge tool that understands C#, Vb.net, Java and now C
Productivity Developer Tools File Management
text-compare comparison diff file-compare merging