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Sigma File Manager vs Krusader: catalog facts
Sigma File Manager	Krusader
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source under the GPL 2.0 or later.
Windows, Linux	Linux
Its global search indexes a large drive in seconds, and the dual-pane split view and media previews are…	Directory synchronisation and file content comparison Built-in archive handling and SFTP/FTP transfers
It is an Electron application maintained by one developer, so it is heavier than a native file manager.	Built on KDE libraries, which adds dependencies on other desktops Dense interface with many options to learn
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0-or-later
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 September 23, 2026

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