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QjackCtl 0.5.4 - An Early Autumn'18 Release

That's it!

QjackCtl 0.5.4 (early-autumn'18) is out!

QjackCtl is a(n ageing but still modern, maybe not so simple anymore) Qt application to control the JACK sound server, for the Linux Audio infrastructure.


Project page:


Git repos:


  • Graph port-type colors are now configurable (cf. menu View > Colors...).
  • Make Graph nodes (ie. client boxes) transparent for yet some eye-candiness ;). Also keep the (Graph) current selection across port (dis)connections.
  • Drawing patchbay connector lines as (bezier) curves is now a difinitive and fixed feature (as long as no moreremains from the so called "Cambric explosion era" are still lurking in there).
  • AppStream metadata updated to be the most compliant with latest specification and recommendation.
  • Graph auto-layout improvement for brand new node clients.
  • Avoid showing setup warning when no server settings have changed.
  • Fixed JACK D-Bus settings for MIDI driver parameter.

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QjackCtl is free, open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Enjoy && have fun! (what else?)


Hi (again) Rui,

This quick comment to inform you that I've been updating QjackCtl in LibraZiK-2 to 0.5.4 around 2 months ago,

You can find the blog post I wrote (in French) about this update here: and the documentation page (in French too) for this software is still here:

Thanks for QjackCtl!

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