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coppwr vs QjackCtl: catalog facts
coppwr	QjackCtl
Free Free and open source under the GPL-3.0-only license.	Free Free and open source under GPL-2.0-or-later.
Linux	Linux
Edits PipeWire node graphs and metadata Inspects objects and process statistics	Controls JACK daemon settings and status Includes patchbay and connection controls
The project recommends simpler tools for end users configuring PipeWire	Requires the JACK Audio Connection Kit Designed for the Linux Audio Desktop
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-2.0-or-later
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.