Carla is a modular audio plugin host designed for loading, routing, and controlling a wide range of audio plugins and sound banks.
It offers several processing modes, including rack and patchbay workflows, and can operate with JACK or native audio drivers depending on the user’s setup.
This is free and open source software.
Key Features
- Supports LADSPA, DSSI, LV2, VST2, VST3, and AU plugin formats.
- Loads SF2, SF3, and SFZ sound banks.
- Includes an internal audio and MIDI file player.
- Offers MIDI CC automation for plugin parameters.
- Provides remote control over OSC.
- Features Rack and Patchbay processing modes.
- Can run as a standalone application, LV2 plugin, and VST2 plugin.
Website: github.com/falkTX/Carla
Support:
Developer: Filipe Coelho
License: GNU General Public License v2.0

Carla is written in C++ and C. Learn C++ with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.
Related Software
| Audio Effects, Mixers, and PipeWire Routing Tools | |
|---|---|
| Easy Effects | GTK audio manipulation software which includes a range of tools |
| Carla | Modular audio plugin host |
| JamesDSP for Linux | Audio effect processor for Pipewire |
| Pulsemeeter | Audio routing and mixer application |
| Melodic Mix | Simple mixer and digital signal processing application |
| LSP Plugins | Broad collection of studio-oriented plug-ins |
| Sonusmix | GTK4 audio routing and device management application |
| qpwgraph | Graph manager dedicated to PipeWire |
| pwvucontrol | Pipewire volume control |
| Pipeweaver | Audio management tool built on top of PipeWire |
Read our verdict in the software roundup.
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