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.




SmartSynchronize is described as 'Multi-platform file and directory compare tool. It allows you to compare files or perform 3-way-merges, both with the ability to edit the file contents. SmartSynchronize is specialized in comparing directory structures (for example, of software projects)' and is a Diff Tool in the file management category. There are more than 25 alternatives to SmartSynchronize for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best SmartSynchronize alternative is WinMerge, which is both free and Open Source. Other great apps like SmartSynchronize are Meld, Beyond Compare, KDiff3 and ForskScope.
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.




Easily compare and merge text files; compare doc, xls and pdf files; prepare comparison reports and printouts.

AptDiff is a visual text / binary files comparison and merging utility for Windows. It is highly useful for web designers, software developers, and other professionals.




Free file and folder merge tool providing two-way comparison, Visual Studio and Atmel Studio integration, enhanced folder sync, syntax highlighting, batch operations, Intellisense, navigation by change type, command line support, and detailed control over merges.




Guiffy is a diff merge tool and folder compare application and API. SureMerge is the most trustworthy source code 3-way merge tool available. Advanced features include tuneable inline diff highlighting, syntax highlighting and a blend of 3 diff algorithms.




Vovsoft Compare Two Lists is a list comparison tool that can perform set operations over lists of words or numbers. Copy and paste your lists into the program, then click the "Compare" button to get the difference between the two lists.


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.

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...



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.



DiffPlug is a free text editor/differ and image viewer/differ. Purchasing a license allows you to diff other kinds of files such as Simulink.
