The Best Open Source WinMerge AlternativesTop Diff Tools & File Comparison Tools like WinMerge

The best open source alternative to WinMerge is Meld. If that doesn't suit you, our users have ranked more than 50 alternatives to WinMerge and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to WinMerge are KDiff3, WinMerge 2011, Meld for OSX and WinMerge JP.

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WinMerge alternatives are mainly Diff Tools, but if you're looking for File Comparison Tools or Merge File Tools you can filter on that. Other popular filters include Linux, Mac, Windows, Mac + Free and Mac + Open Source. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to WinMerge.
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Alternatives list

  1. Meld icon

    Meld

     423 likes

    Meld is an open-source, Python-based visual diff and merge tool that allows you to compare and edit files, supports syntax highlighting, and integrates with version control systems like CVS, Subversion, and Mercurial for dynamic diff updates. It works offline, is lightweight, portable, and ad-free.

    62 Meld alternatives

    Cost / License

    Application type

    Platforms

    • Windows
    • Linux
    • BSD
    • Python
    • GTK
    • AU flagAustralia
    File comparison
    Good alternative?
     
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    4
  2. KDiff3 icon

    KDiff3

     118 likes

    KDiff3 is a file and directory diff and merge tool.

    69 KDiff3 alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • KDE Plasma
    • DE flagGermany
    • European Union flagEU
    KDiff3 screenshot 1
    Good alternative?
     
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    3
  4. WinMerge 2011 icon

    WinMerge 2011

     30 likes

    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.

    Cost / License

    Application type

    Platforms

    • Windows
    • PortableApps.com
    • Wine
    • DE flagGermany
    • European Union flagEU
    WinMerge 2011 screenshot 1
    Good alternative?
     
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    1
  5. Meld for OSX icon

    Meld for OSX

     11 likes

    Meld is a visual diff and merge tool targeted at developers. Meld helps you compare files, directories, and version controlled projects. It provides two- and three-way comparison of both files and directories, and has support for many...

    Cost / License

    Application type

    Platforms

    • Mac
    Meld for OSX screenshot 1
    Good alternative?
     
  6. WinMerge JP icon

    WinMerge JP

     15 likes

    WinMerge JP is a fork of the original WinMerge, but after 2018 the two are nearly identical. WinMerge JP's features including 3-way compare has been merged into the original.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    Differential indication.
    Good alternative?
     
  8. Compare icon

    Compare

     37 likes

    Comparison plugin for Notepad++ editor.

    65 Compare alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Notepad++
    • FR flagFrance
    • European Union flagEU
    Settings
    Good alternative?
     
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    1
  10. mergely icon

    mergely

     15 likes

    Merge is an online merge and diff tool that allows you to share and save your documents.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • US flagUnited States
    mergely screenshot 1
    Good alternative?
     
  11. Kompare icon

    Kompare

     11 likes

    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...

    Cost / License

    Application type

    Platforms

    • Linux
    • KDE
    • Flathub
    • DE flagGermany
    • European Union flagEU
    Kompare screenshot 1
    Good alternative?
     
  12. Difftastic icon

    Difftastic

     3 likes

    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.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • NZ flagNew Zealand
    Difftastic screenshot 1
    Good alternative?
     
  13. VisualDiffer icon

    VisualDiffer

     3 likes

    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.

    Cost / License

    Application type

    Platforms

    • Mac
    • IT flagItaly
    • European Union flagEU
    Folder Comparison Side-by-side folder comparison with color-coded file status. Quickly identify new, modified, unchanged, and removed files
    Good alternative?
     
  14. xxdiff icon

    xxdiff

     1 like

    xxdiff is a QT based graphical file and directories comparator and merge tool. It provides comparing two files, three files.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • CA flagCanada
    xxdiff screenshot 1
    Good alternative?
     
12 of 25 WinMerge alternatives