Best way to install is using official docs from osx repo here. Remember to configure meld as difftool in the command line as well.
There are two ways of installing meld on osx, using brew and .dmg package (from @yousseb). Since I found https://yousseb.github.io/meld/, I've installed it with .dmg package, but having macOS Ventura Version 13.4 (22F66) in place, it's not even starting for me. So I tried brew installation, and the application is working as expected, including symlink to start it from the terminal.
Using brew formulae: https://formulae.brew.sh/cask/meld
brew install --cask meld
# set meld as your default git mergetool
git config --global merge.tool meld
Requires: macOS >= 10.13 meld has been officially discontinued upstream. It may stop working correctly (or at all) in recent versions of macOS.
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Alternative method (by @yousseb), try
.dmgpackage yourself: https://yousseb.github.io/meld (caveat: project haven't been updated since Jul 2022). -
Legacy methods (including old osx versions): https://gist.github.com/p1nox/6102015/4fa2a9ba9379879a35e113921770c85e09861e8a
- If meld doesn't start from terminal, try this, modify the
/usr/local/Caskroom/meld/3.19.2-r6,osx-15/meld.wrapper.shscript installed by brew to the following:
#!/bin/sh
rm -rf ~/Library/Saved\ Application\ State/org.gnome.meld.savedState
exec '/Applications/Meld.app/Contents/MacOS/Meld' "$@"
Thanks for you gist, I launch meld successfully.