Apps similar to Beyond Compare include WinMerge, which is free and open source. Other options are Meld, Unison File Synchronizer, KDiff3 and P4Merge. Diff Tools like Beyond Compare are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, the web and self-hosting.
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.
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FolderMatch is a program that compares directories and files, showing the differences clearly.
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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.
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Compare up to N folders side-by-side with intelligent minority-difference highlighting — the only N-way directory comparison tool for Windows & Linux.
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Visualize folders side-by-side and find immediately which files are different, colors help to understand the diff type. Colors identify older, modified and newer files.
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Merge is an online merge and diff tool that allows you to share and save your documents.
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Draftable API Self-hosted is built for on-premise deployments. It is supplied as a virtual appliance and comparisons run entirely in that appliance. That means the confidentiality and privacy of your data is guaranteed.
Ediff is a comprehensive visual interface to Unix diff and patch utilities.
Ediff provides a convenient way for simultaneous browsing through the differences between a pair (or a triple) of files or buffers (which are called ‘variants’ for our purposes). The files being compare.
