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Meld for macOS vs jdDiff: catalog facts
Meld for macOS	jdDiff
Free Free and open source under the GPL-2.0-or-later.	Free The Flathub listing identifies the software as GPL-3.0.
macOS	Linux
Native macOS packaging of a familiar diff tool Side-by-side comparison and merging	Compares individual files Compares directories
A community port maintained separately from Meld itself macOS only; other platforms use the main Meld builds	Supplied package evidence is for Linux
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.