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Virtual Machine Manager vs Quickgui: catalog facts
Virtual Machine Manager	Quickgui
Free Free and open source under the GPL 2.0, maintained by Red Hat.	Free Free to download and use.
Linux	macOS, Linux
The standard interface for KVM, so guides and answers are everywhere Command line tools for creating and editing machines without a desktop	Downloads operating system images and creates VMs from a list Graphical control over Quickemu virtual machines
Linux only The interface is functional and has barely changed in years	Depends on Quickemu and QEMU being installed No Windows version
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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