Guitarix review
A free, open-source amp suite with deep routing and model-loading options.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Guitarix is an open-source virtual guitar amplifier for processing guitar input on Linux, with source builds also described for macOS and other Unix-like systems. It suits guitarists who want free amp processing, flexible signal routing, and a software setup that can work either as a standalone application or inside a DAW. The core design combines an amplifier section with rack effects, separate routing, and stereo output rather than focusing only on a small set of amp presets.
Its feature depth is strongest in effects, routing, and model loading. The built-in effects rack includes more than 25 modules, while amp and speaker cabinet emulations handle the main amplification chain. Guitarix also loads third-party impulse responses and supports Neural Amp Modeler and RTNeural models. External LADSPA and LV2 plugins can be loaded as well, and MIDI controller or footboard control supports performance-oriented workflows. For DAW use, it provides LV2 modules and a VST3 plugin through the project’s Linux wrapper.
The ecosystem fit is centered on Linux audio: JACK Audio Connection Kit, LADSPA, and LV2 are named integrations, and JACK is part of the application’s routing model. That makes Guitarix a strong choice for Linux-focused users who value open-source software, modular signal paths, and broad plugin interoperability. It is less suitable for buyers seeking broad verified platform coverage or a conventional cross-platform commercial product with a larger emphasis on packaged amp-model counts. Choose Guitarix for its free, extensible Linux workflow; look elsewhere if Linux audio integration is not your priority.
Guitarix pros and cons
- Where it wins
- Free and open source with standalone and plugin workflows
- More than 25 built-in effects modules plus amp and cabinet emulations
- Loads impulse responses, NAM models, RTNeural models, LADSPA and LV2 plugins
- Where it doesn't
- Platform coverage is narrower than many guitar amp software alternatives
- Linux VST3 support comes through the project's wrapper
- JACK Audio Connection Kit is central to its routing workflow
Guitarix fact sheet, pricing and score →
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