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Space Radar vs Filelight: catalog facts
Space Radar	Filelight
Free Free and open source under the MIT licence.	Free Free and open source under the GPL.
Windows, macOS, Linux	Windows, Linux
Three chart types: sunburst, treemap and flamegraph Shows results while the scan is still running	The ring chart makes the biggest space consumers immediately obvious Scans remote and network locations as well as local disks
Documentation is limited to the README Small hobby project without a dedicated website	Pulls in KDE libraries on non-KDE desktops
Downloadable app	Downloadable app
Open source	Open source
License: MIT	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 2, 2026	Official website Full listing and sources Checked September 22, 2026

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