Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely2 of 6 device platforms
  • DocumentedPlans, terms and facts published

Guitarix is a free virtual guitar amplifier that processes sound through the JACK Audio Connection Kit. It takes mono input from a sound card through a main amp and rack section, which can be routed separately to create stereo output via JACK. The rack contains more than 25 built-in effect modules, including noise gate, flanger, phaser, and auto-wah. Users can add LADSPA and LV2 plugins; Guitarix is also available as an LV2 plugin suite for loading amps and plugins in a DAW. The project names Ardour and says Guitarix can connect to Rackarrack or another JACK-aware host. It can process synths and other sound generators as well as guitar signals. The maker says a properly set-up Linux system processes the signal in no more than 10 ms. Guitarix is a standalone app with an IR loader, licensed under GNU GPL version 2. It is available in most current Linux distributions; source can also be built for BSD and MacOSX. The listed platforms are Linux and macOS.

Who it is for

Guitarix suits Linux users who want a JACK-based virtual amp and rack effects, either as a standalone app or through its LV2 plugin suite. It can also suit people processing synths or other sound generators.

What is good

  • Includes more than 25 effect modules.
  • Accepts LADSPA and LV2 plugins.
  • Can process synths and other sound generators.
  • Licensed under GNU GPL version 2.

What to know first

  • Uses the JACK Audio Connection Kit.
  • Development-repository installation is not recommended for productive systems.
  • The listed platforms are Linux and macOS.

Verdict

Guitarix offers a standalone JACK-based amp with built-in effects and support for LADSPA and LV2 plugins. Users considering a development-repository build should note that the project advises against using it on productive systems.

Guitarix plans and pricing

All plans
Guitarix Free Free software · GNU GPL version 2 guitarix.org · 4 Oct 2026

Compared on guitar amp software

Free plan
Yes
Plugin formats
VST3, LV2
Standalone app
Yes
IR loader
Yes
Supported platforms
Linux, macOS

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