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projectM vs Cavasik: catalog facts
projectM	Cavasik
Free Free and open source.	Free Free and open source under the GPL-3.0-or-later licence.
Linux	Linux
Compatible with Milkdrop presets GPU-accelerated rendering	Graphical front end built on the CAVA engine Packaged for Flatpak, Snap and the AUR
The main repository is a library; the standalone app is a separate build Visual only, it does not play music on its own	Linux only A visualizer only, with no playback features
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-3.0-or-later
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.