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Mixer vs Volume Control: catalog facts
Mixer	Volume Control
Free Free and open source under the GPL-3.0 or later licence.	Free Free and open source under the GPL-2.0-or-later licence.
Linux	Linux
Per-application volume control Balance and output selection for each stream	Separate volume control for each application Per-device volume adjustment
Linux only and designed around elementary OS Small project with a limited feature set	Linux only Built around the PulseAudio sound system
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-2.0-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.