Meld Git difftool / mergetool

Git users often use Meld to graphically resolve 2-way differences and 3-way merges.

Configure Git to use Meld:

git config --global diff.tool meld
git config --global merge.tool meld

On Windows, Meld can be installed by:

winget install -e --id Meld.Meld

Troubleshooting

If Meld was installed manually and Git can’t find Meld, configure Git to use Meld by setting the path to Meld.exe like:

git config --global mergetool.meld.path "$Env:ProgramFiles\\meld\\Meld.exe"

On Windows if also using MSYS2, don’t add Meld.exe to environment variable Path as it has libstdc++.dll that conflicts with MSYS2 G++. The symptom is the G++-built executable will segfault silently.

Alternatives:

• Visual Studio Code: Git difftool and mergetool
• Matlab can compare and merge segments of files with visdiff()