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Sifty vs Wise Disk Cleaner: catalog facts
Sifty	Wise Disk Cleaner
Free Free and open source under the MIT licence.	Free Free to download and use.
Windows, Command line	Windows
Dry-run by default with a preview before deleting Deletes only to the Recycle Bin, with undo	Removes junk files and browser traces Built-in disk defragmenter
Windows 10 and 11 only Terminal interface, no graphical window	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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