qpwgraph

What qpwgraph is

qpwgraph is a free PipeWire graph manager for Linux, built with the Qt C++ framework and modeled after QjackCtl. Its canvas displays PipeWire nodes and their ports, which users can connect by dragging between ports of the same type and opposite directions. The graph supports audio, video, PipeWire/JACK MIDI, and optionally ALSA MIDI. Patchbay configurations can save connections and restore them when loaded; exclusive mode also removes connections absent from the active configuration. The application remembers node positions and custom names in its configuration file. A case-insensitive filter can hide nodes by name or title and supports regular expressions. A separate merger option can match node-name or title prefixes during patchbay scans, also with regular-expression support. The 1.0.1 changelog adds a command-line option for connecting to a named remote PipeWire daemon; the PIPEWIRE_REMOTE environment variable takes precedence. Building requires a C++20 compiler, Qt, PipeWire development libraries and headers, and CMake 3.15 or newer; ALSA development files are optional for ALSA MIDI.

Who it suits

It suits Linux users who need to view and manage PipeWire connections across supported media ports. Developers building it need the listed C++ and Qt-related dependencies.

Limits

The free and open-source plan costs nothing. Building requires a C++20 compiler, Qt, PipeWire development libraries and headers, and CMake 3.15 or newer; ALSA development files are optional for ALSA MIDI support.

Getting started

1. Open the qpwgraph project website on GitHub.
2. Build with a C++20 compiler, Qt, PipeWire development libraries and headers, and CMake 3.15 or newer.
3. Include ALSA development files in the build if ALSA MIDI support is needed.
4. Open the graph and drag between ports of the same type with opposite directions.
5. Save connections in a patchbay configuration if you want to restore them later.

Verdict

qpwgraph offers connection management, saved patchbay configurations, and graph filtering for PipeWire on Linux. It is free and open source, but building it requires several development dependencies.