x42-plugins

At a glance

• Editor score
  5.7 / 10
• Pricing
  From $49
• Best for
  Linux users seeking LV2 tools and utilities
• Free plan
  No
• Paid from
  $49one-time
• License model
  Both
• Facts checked
  19 Sep 2026

• Where it wins

  • Covers EQ, metering, limiting, pitch correction, routing, and signal generation
  • Standalone JACK applications complement its LV2 plugins
  • Integrates with Ardour, REAPER, Audacity, Carla, and Harrison Mixbus

• Where it doesn't

  • LV2 is the only listed plugin format
  • The starting price is a one-time $49 license
  • Some tested binary releases require licenses

Our verdict on x42-plugins

x42-plugins is an open-source suite of audio-processing plugins and standalone JACK applications for musicians, audio engineers, and Linux audio users. Its scope ranges from parametric equalization and metering to limiting, pitch correction, compression, convolution, routing, and signal generation. Builds are offered for Windows, macOS, Linux, and Linux ARM systems, making the suite relevant beyond Linux even though its positioning is especially suited to Linux users seeking LV2 tools and utilities.

The breadth is a key distinction: alongside EQ with shelf and high/low-pass filters, the suite includes audio-level, loudness, spectrum, phase, and goniometer meters, plus digital-peak and true-peak limiting. Vocal pitch correction supports MIDI-controlled note targeting, and speaker rotation uses physical modeling. Utility plugins add a tuner, oscilloscope, routing, delay, and signal generation. Standalone JACK applications extend the offering beyond plugins. This makes x42 a fit for users who want varied processing and utility functions within an LV2-focused collection, rather than a narrow specialist plugin.

The listed starting price is $49 USD for a one-time license, and there is no free plan. Source code and distribution packages are available, while tested binary releases for some plugins require licenses. LV2 is the only listed plugin format, so buyers who require a different plugin format should look elsewhere. Integrations include Ardour, Harrison Mixbus, REAPER, Audacity, and Carla. Choose x42-plugins if its LV2 format and range of audio tools suit your workflow; consider an alternative if another plugin format is essential or a free plan is a requirement.

Your product? Our editors can test x42-plugins in depth and publish a review, labelled as paid · from $149/mo →

x42-plugins pricing

x42-plugins fact sheet

x42-plugins integrations

x42-plugins lists 5 integrations on its own site.

• Ardour
• Harrison Mixbus
• REAPER
• Audacity
• Carla

Alternatives to x42-plugins

• 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 x42-plugins alternatives →

Featured on iTechGuides

x42-plugins is listed in our Audio Plugins directory. Add the badge to your site — it links back to this page.

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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