

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 Meld, which is both free and Open Source. Other great apps like KDiff3 are WinMerge, Beyond Compare, P4Merge and Araxis Merge.


DiffGuru is a free online tool for developers and writers to instantly compare two blocks of text or files, highlight additions and deletions, and merge changes - no signup required, privacy-first design.




An application to help you keep multiple pairs of folders in sync, quickly and easily. View differences between pairs of folders on screen using user defined coloured coding. Folder Sync allows you to utilise a fully automatic sync or manually manipulate the files yourself to...



Text compare! is a online diff tool that allows you to easily spot the differences between to texts. Just paste two texts and hit the compare button. The two texts are shown side by side, with differences highlighted.

Text Comparator, is a portable tool that can be used to compare text from two distinct sources in order to see if they perfectly match or not each other!


Compare text files or entire directory hierarchies, export and apply patches, and perform non-destructive find and replace operations on text files.




Diffchecker will compare text to find the difference between two text files. Just paste your files and click Find Difference!.

A file and folder comparison tool, targeted at developers, with powerful merging capabilities. Easily integrate with git or other version control system and diff and merge files with the 3-ways merge and powerful alignment...




dwdiff is a diff program that operates at the word level instead of the line level. It is different from wdiff in that it allows the user to specify what should be considered whitespace, and in that it takes an optional list of characters that should be considered delimiters.


Pretty Diff is a language aware code comparison tool, beautifier, minifier, and parser for a variety of web oriented languages.

Diff Checker compares two snippets of text, source code, JSON or full files and highlights every change side-by-side. Everything runs locally inside the browser extension—no data ever leaves the user’s machine—so it suits security-sensitive workflows.



