WinMerge is an open source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.




GumTreeDiff is described as 'GumTree is a complete framework to deal with source code as trees and computing differences between them' and is a Diff Tool in the development category. There are more than 10 alternatives to GumTreeDiff for a variety of platforms, including Windows, Linux, Web-based, Mac and PortableApps.com apps. The best GumTreeDiff alternative is WinMerge, which is both free and Open Source. Other great apps like GumTreeDiff are Meld, Beyond Compare, Diffchecker and Kompare.
WinMerge is an open source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.




Meld is an open-source, Python-based visual diff and merge tool that allows you to compare and edit files, supports syntax highlighting, and integrates with version control systems like CVS, Subversion, and Mercurial for dynamic diff updates. It works offline, is lightweight, portable, and ad-free.




File and folder comparison tool offering source control integration, 3-way merge support, and selective synchronization. Supports FTP, cloud, runs offline, uses simple commands for files, customization, and scripting for reporting. Lightweight, portable with CLI and built-in viewer.




Diffchecker Pro enables you to compare various types of content, on your desktop or directly in the browser.




Kompare is a graphical diff and merge tool targeting developers. It allows users to compare two different text files or two directories. It is part of KDE Applications (and formerly part of KDE Software Compilation) and therefore primarily used on Linux and other Unix-like...

GNU Diffutils is a package of several programs related to finding differences between files.
WinMerge 2011 series is a fork of the original WinMerge application that compiles without ATL/MFC dependencies to enable zero-budget developers to build WinMerge from sources using Visual C++ Express editions.


WinMerge JP is a fork of the original WinMerge, but after 2018 the two are nearly identical. WinMerge JP's features including 3-way compare has been merged into the original.


Easily compare and merge text files; compare doc, xls and pdf files; prepare comparison reports and printouts.

Free file and folder merge tool providing two-way comparison, Visual Studio and Atmel Studio integration, enhanced folder sync, syntax highlighting, batch operations, Intellisense, navigation by change type, command line support, and detailed control over merges.




diffoscope tries to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable form to compare them.
SemanticMerge - The diff and merge tool that understands C#, Vb.net, Java and now C