Diffchecker is described as 'Pro enables you to compare various types of content, on your desktop or directly in the browser' and is a Diff Tool in the development category. There are more than 50 alternatives to Diffchecker for a variety of platforms, including Windows, Mac, Linux, Web-based and SaaS apps. The best Diffchecker alternative is WinMerge, which is both free and Open Source. Other great apps like Diffchecker are Meld, Beyond Compare, KDiff3 and ForskScope.
Kompare is a graphical diff and merge tool targeting developers. It allows users to compare two different text files or two directories. It is part of KDE Applications (and formerly part of KDE Software Compilation) and therefore primarily used on Linux and other Unix-like...
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.
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.
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.
Offline Windows tool to create folder manifests, verify file integrity, compare folders, and find duplicate files using SHA-256 and CRC32 checksums.
Riffle is a fast, native macOS diff and merge tool with 2-way diff, 3-way merge with an editable result, and folder compare, built for git, Tower, and the command line.
DiffMerge is a graphical file comparison program for Windows, Mac OS X and Unix, published by SourceGear.
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.
GNU Diffutils is a package of several programs related to finding differences between files.
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.
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It's fully free and open source