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Meld for macOS vs DiffMerge: catalog facts
Meld for macOS	DiffMerge
Free Free and open source under the GPL-2.0-or-later.	Free Free to use under SourceGear's freeware license.
macOS	Windows, macOS, Linux
Native macOS packaging of a familiar diff tool Side-by-side comparison and merging	Two-way diff and three-way merge with editable panes Side-by-side folder comparison
A community port maintained separately from Meld itself macOS only; other platforms use the main Meld builds	Closed source freeware Infrequent updates
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0-or-later	License: Freeware
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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