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MangoDisk vs Sifty: catalog facts
MangoDisk	Sifty
Free Free and open source.	Free Free and open source under the MIT licence.
Windows, macOS	Windows, Command line
Finds developer caches and build artifacts as well as system junk Risk levels shown for cleanable items	Dry-run by default with a preview before deleting Deletes only to the Recycle Bin, with undo
Cleaning tools can remove data you still need, so review selections AI explanations are an optional extra rather than core functionality	Windows 10 and 11 only Terminal interface, no graphical window
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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