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Radix vs GrandPerspective: catalog facts
Radix	GrandPerspective
Free Free and open source, with downloads on GitHub and Homebrew.	Free Free and open source under the GPL.
macOS	macOS
Sunburst and treemap views of the same scan Compares scans to show what changed over time	Saved scans can be compared to see what grew since last time Deletes or reveals a file straight from the map
Requires macOS 14 or later macOS only	macOS only, and the interface is deliberately plain
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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