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

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