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Filelight vs Space Radar: catalog facts
Filelight	Space Radar
Free Free and open source under the GPL.	Free Free and open source under the MIT licence.
Windows, Linux	Windows, macOS, Linux
The ring chart makes the biggest space consumers immediately obvious Scans remote and network locations as well as local disks	Three chart types: sunburst, treemap and flamegraph Shows results while the scan is still running
Pulls in KDE libraries on non-KDE desktops	Documentation is limited to the README Small hobby project without a dedicated website
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: MIT
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 22, 2026	Official website Full listing and sources Checked October 2, 2026

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