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Kaleidoscope vs Meld for macOS: catalog facts
Kaleidoscope	Meld for macOS
Paid Paid app with a free trial.	Free Free and open source under the GPL-2.0-or-later.
macOS	macOS
Compares text, images and folders Three-way merge with commit context	Native macOS packaging of a familiar diff tool Side-by-side comparison and merging
A diff and merge tool, not a full Git client Paid after the trial	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 not stated	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 September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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