WinMerge is a free software tool for data comparison and merging of text-like files.

For a planned development of version 3.x [2] no commits have been made to the 3.0 codebase since 2011.

[3] In 2011 a fork of the 2.x codebase titled "WinMerge 2011" was created.

This new branch has continued to see active feature and bug fix development.

It has also removed ATL/MFC dependencies so that WinMerge can be built using the free Visual C++ Express editions.