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QjackCtl vs coppwr: catalog facts
QjackCtl	coppwr
Free Free and open source under GPL-2.0-or-later.	Free Free and open source under the GPL-3.0-only license.
Linux	Linux
Controls JACK daemon settings and status Includes patchbay and connection controls	Edits PipeWire node graphs and metadata Inspects objects and process statistics
Requires the JACK Audio Connection Kit Designed for the Linux Audio Desktop	The project recommends simpler tools for end users configuring PipeWire
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-3.0-only
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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