This is an old version of WinMerge, for the latest version go to the main site.
WinMerge 2.4
WinMerge is an Open Source (GPL) visual text file differencing and merging tool for Windows. It is highly useful for determing what has changed between project versions, and then merging changes between versions.
Features
- Visual differencing and merging of text files
- Flexible editor with syntax highlighting
- Handles DOS, UNIX and MAC text file formats
- Unicode support
- Difference pane shows current difference in two vertical panes
- Location pane shows map of files compared
- Highlights differences inside the lines
- File filters in directory pane
- Moved lines detection in file compare pane
- Shell Integration
- Rudimentary Visual SourceSafe and Rational ClearCase integration
- Archive file support using 7-zip
- Plugin support
- Localizable interface via resource DLL
- HTML-based Manual
Screenshot

See the screenshots page for more screenshots.
Installation
Just download the installer and double-click it.
Or you may simply unzip the binary zip package into the desired location, and run
WinMergeU.exe (except for Windows 98/ME users who should use WinMerge.exe).
For more information, please see the Installation section of the Manual.
Using WinMerge
For information on using WinMerge, see our online Manual, or you can download a copy of the documentation for offline use.
Here is the current change history.