GNUitar

At a glance

• Editor score
  5.3 / 10
• Pricing
  Free plan
• Best for
  Free PC guitar effects
• Free plan
  Yes
• Paid from
  Free
• License model
  Free
• Facts checked
  22 Sep 2026

• Where it wins

  • Free and open source under the GNU GPL version 2.0
  • Covers wah, sustain, distortion, reverb, echo, delay, tremolo, vibrato and chorus/flanger
  • Runs on Windows and Linux for desktop-based guitar processing

• Where it doesn't

  • Limited to Windows and Linux
  • Focused on guitar processing rather than broader audio production
  • The project was last updated on 2013-04-03

Our verdict on GNUitar

GNUitar turns a personal computer into a guitar processor through a focused collection of desktop effects. Its feature set includes wah-wah, sustain, distortion, reverberation, echo, delay, tremolo, vibrato, and chorus/flanger. That makes it a practical fit for guitarists who want free PC-based signal processing without paying for a commercial plugin or adopting a broader audio-production suite. The software is available for Windows and Linux, giving it a clear desktop audience.

Its strongest advantage is breadth within that narrow purpose. The effects cover several common guitar-processing needs, from gain and sustain to modulation, ambience, and time-based effects. A single product can therefore handle a useful range of basic tones while staying centered on guitar. GNUitar is distributed under the GNU General Public License version 2.0, which also suits users who prefer open-source software. The published project files include a Windows 0.3.2 download, while the listed operating systems are Windows and Linux.

The trade-off is scope and project currency. GNUitar is designed for PC guitar processing, not as a general audio platform, and its platform coverage does not extend beyond Windows and Linux. The project’s last update is dated 2013-04-03, so users looking for a recently updated tool or a wider modern plugin ecosystem may prefer an alternative. Pick GNUitar if free, open-source guitar effects on a Linux or Windows computer are the priority. Choose elsewhere if current development, broader platform support, or a more expansive production workflow matters more.

Your product? Our editors can test GNUitar in depth and publish a review, labelled as paid · from $149/mo →

GNUitar pricing

GNUitar fact sheet

Alternatives to GNUitar

• UAD Plug-InsA flexible plugin suite with native and hardware-DSP options, plus free and paid access.9.4
• Waves UltimateA broad, regularly updated plugin suite for production, mixing, mastering and sound design.9.2
• iZotope OzoneAI-assisted mastering with reference tools and tiered, one-time editions.9.1

See all GNUitar alternatives →

Featured on iTechGuides

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update