WinMerge
WinMerge is a free, open-source developer tool for Windows. WinMerge is an Open Source differencing and merging tool for Windows. It has 9,309 GitHub stars and is released under the GPL-2.0 license. Its source code is on GitHub at WinMerge/winmerge.
github.com/WinMerge/winmerge (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About WinMerge
WinMerge is an open-source differencing and merging tool for Windows. It compares files and folders and presents differences in a clear, visual format that is easy to understand and work with. WinMerge has been actively developed since 2000.
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Is WinMerge free and open source?
Yes. WinMerge's source code is public on GitHub under the GPL-2.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install WinMerge?
Download the installer for Windows from its GitHub Releases page (latest: v2.16.60) or the project website.
Is WinMerge still maintained?
The repository's most recent commit was on Oct 27, 2026. appsgit only lists apps whose repository had a commit in the last six months.