Diffinity is a diff and merging tool with focus on accurate and easy to read source code diffs. It will compare the content of two files and present the differences in an easy to read line by line and char by char basis.




Twofold is described as 'Modern online file and folder diff tool that runs entirely in your browser — no uploads' and is a Diff Tool in the file management category. There are more than 50 alternatives to Twofold, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and Flathub apps. The best Twofold alternative is WinMerge, which is both free and Open Source. Other great sites and apps similar to Twofold are Meld, Beyond Compare, Unison File Synchronizer and KDiff3.
Diffinity is a diff and merging tool with focus on accurate and easy to read source code diffs. It will compare the content of two files and present the differences in an easy to read line by line and char by char basis.




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.

Perform detailed folder and file comparisons on Mac with side-by-side expandable trees, colour and icon indicators, content-based matching, manual synchronisation, filename templates, quick reload, tabbed interface, drag-and-drop, and intuitive visual controls.




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




Kaleidoscope is the most popular iPad alternative to Twofold.
UltraCompare Professional is folder/file compare utility loaded with features to enable you to compare text files and folders, word documents, and even zip files and jar archives. UltraCompare includes text compare, binary file compare with the capability to merge differences...




GNU Diffutils is a package of several programs related to finding differences between files.
DiffMerge is a graphical file comparison program for Windows, Mac OS X and Unix, published by SourceGear.

Difftastic is a diff tool that compares files based on their syntax. It supports over 20 programming languages and when it works, it's fantastic.

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.


FileMerge lets you compare one file to another or one directory to another and merge the files or directories together.



