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Caligula vs Bootqt: catalog facts
Caligula	Bootqt
Free Free and open source.	Free Free and open source under the GPL-3.0 licence.
macOS, Linux, Command line	Linux
Interactive terminal interface instead of raw dd commands Progress display while writing	Few steps: select drive, select image, write Handles both ISO and IMG files
No graphical interface No Windows support indicated	Linux only for now Basic feature set compared with tools such as Ventoy
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-only
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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