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

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