WinDiff is a graphical file-comparison program published by Microsoft (from 1992[1]), and is distributed with certain versions of Microsoft Visual Studio as well as in source-code form with the Platform SDK code samples.

GNU Diff Utilities is described as 'GNU Diffutils is a package of several programs related to finding differences between files' and is a Diff Tool in the development category. There are more than 50 alternatives to GNU Diff Utilities for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best GNU Diff Utilities alternative is WinMerge, which is both free and Open Source. Other great apps like GNU Diff Utilities are Meld, Beyond Compare, KDiff3 and SyncToy.
WinDiff is a graphical file-comparison program published by Microsoft (from 1992[1]), and is distributed with certain versions of Microsoft Visual Studio as well as in source-code form with the Platform SDK code samples.

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




DiffFork is a diff tool for Mac OS X. DiffFork can compare both folders and files, presenting differences in a visual format.

Compare Files Using ' Diff Doc' a visual file compare and folder compare utility that creates a detailed file diff. File comparison can optionally be done with the command line. Compare Word and Compare XLS files in addition to PDF, txt, rtf...
ECMerge is a comparison and synchronization tool with two and three-way merge for text and folders and difference on binary, text, images and folders, locally, via FTP/S, SFTP or in version controls. For Windows, Mac OS X, Solaris and Linux.




Workshare Compare is the leading document comparison software that lets you perform file comparison of two documents against multiple modified versions.
xxdiff is a QT based graphical file and directories comparator and merge tool. It provides comparing two files, three files.



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



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.



