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.




KDiff3 is described as 'File and directory diff and merge tool' and is a very popular Diff Tool in the development category. There are more than 50 alternatives to KDiff3 for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best KDiff3 alternative is WinMerge, which is both free and Open Source. Other great apps like KDiff3 are Meld, Beyond Compare, P4Merge and Araxis Merge.
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.




Free, GTK-based, similar function.
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.




P4Merge uses color coding to allow users to visualize the differences between file or images. It allows three-way merging among files, and shows side-by-side file/image comparison.



Merge is the visual file comparison (diff), merging and folder synchronization application from Araxis. Use it to compare and merge source code, web pages, XML and other text files with native application performance.




Use Kaleidoscope to spot the differences in text and image files. Review changes in seconds with the worlds most advanced file comparison application.




Meld is a visual diff and merge tool targeted at developers. Meld helps you compare files, directories, and version controlled projects. It provides two- and three-way comparison of both files and directories, and has support for many...


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...

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




Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code.

Intuitive, multi-platform application for two and three-way visual file and folder comparison.

ExamDiff Pro is a powerful, intuitive, and easy to use visual side-by-side comparison tool for comparing and merging text and binary files, and directories.




Meld isn’t as well-suited for syncing whole directory trees.