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, WinMerge JP and Meld for OSX.
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.
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.
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.
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...
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.
Merge is an online merge and diff tool that allows you to share and save your documents.
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...
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.
GUI tool with cross-platform support named after "forske forskjell" (research difference) 🤍
xxdiff is a QT based graphical file and directories comparator and merge tool. It provides comparing two files, three files.
Australia
Germany
EU
France
United States
New Zealand
Canada
compares three files. it can not only compare three directories but also merge them!