WinMerge livermor WinMerge is a Windows-program which opens for easy merging and comparing of text files CVS CVS - command line tool TortoiseCVS WinMerge is open source, which means that it is free for everyone in the whole wide world. It's very nice to use for determining and merging changes between versions of documents and projects, often combined with usage of CVS or SVN. For more information, please visit SourceForge.net.