tkdiff is a graphical diff viewer based on the Tk framework. It is capable of inter-operating with source-control systems like CVS and Subversion to show differences between a local copy and a repository version.

DiffPlug is described as 'Free text editor/differ and image viewer/differ. Purchasing a license allows you to diff other kinds of files such as Simulink' and is a Diff Tool in the development category. There are more than 50 alternatives to DiffPlug for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best DiffPlug alternative is WinMerge, which is both free and Open Source. Other great apps like DiffPlug are Meld, Beyond Compare, KDiff3 and P4Merge.
tkdiff is a graphical diff viewer based on the Tk framework. It is capable of inter-operating with source-control systems like CVS and Subversion to show differences between a local copy and a repository version.

CompareMerge is a Mac OSX's software tool for file comparison and merging text-like files.



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.




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.




LopeEdit is a powerful programmers editor and a replacement of Windows Notepad. It has tabs to select between open files, supports syntax highlighting of multiple programing languages (C/C++, Java, JavaScript, Visual Basic, VBScript, XML, HTML, ASP, JSP, SQL, Cobol, C#, CSS...



Workshare Compare is the leading document comparison software that lets you perform file comparison of two documents against multiple modified versions.