OpenVoxTuner

Summary

OpenVoxTuner is a free real-time vocal pitch correction and harmony plugin for Linux, macOS, and Windows. Its Auto mode quantizes pitch to one of 14 scale types, with adjustable correction speed and amount. Graphic mode lets users draw and edit pitch curves with snapping, a grid, copy and paste, and undo and redo. The harmony engine supports up to four voices in voice and synthesized modes. Key detection can use audio input, the OpenVoxKey companion bridge, or a sidechain input. Built-in effects include formant processing, reverb, a noise gate, and an upward compressor. ARA2 integration reads key, scale, and time signature from a DAW timeline and syncs the playhead and waveform. The plugin is a real-time effect, not an offline tool for note-level editing. MIDI output can be generated from detected pitch, while MIDI input can control correction pitch. OpenVoxTuner is free for personal and commercial use under AGPLv3, with source code on GitHub and no telemetry or feature paywalls according to the maker.

Who it is for

It suits musicians, producers, studios, and educators looking for a free vocal correction and harmony plugin. It is intended for real-time work rather than offline, note-level editing.

Compared on pitch correction software

Free plan

Yesopenvoxtuner.eiffelbs.ovh

Real-time correction

Yesopenvoxtuner.eiffelbs.ovh

Formant control

Yesopenvoxtuner.eiffelbs.ovh

MIDI pitch control

Yesopenvoxtuner.eiffelbs.ovh

Plugin formats

vst3openvoxtuner.eiffelbs.ovh

Scale/key detection

Yesopenvoxtuner.eiffelbs.ovh

Facts

Purpose

OpenVoxTuner is a real-time vocal pitch correction and harmony generation plugin.openvoxtuner.eiffelbs.ovh · 30 Sept 2026

Auto correction

Auto mode uses scale quantization with 14 scale types and adjustable correction speed and amount.github.com · 30 Sept 2026

Manual editing

Graphic mode lets users draw and edit pitch curves with snapping, grid, copy and paste, and undo and redo.github.com · 30 Sept 2026

Harmony

The harmony engine supports up to four voices and offers voice and synthesized modes.github.com · 30 Sept 2026

Key detection

Key detection can use audio input, the OpenVoxKey companion bridge, or a sidechain input.github.com · 30 Sept 2026

Effects

Built-in effects include formant processing, reverb, a noise gate, and an upward compressor.github.com · 30 Sept 2026

DAW integration

ARA2 integration reads key, scale, and time signature from the DAW timeline and syncs the playhead and waveform.github.com · 30 Sept 2026

ARA2 limitation

The product page says OpenVoxTuner is a real-time effect and does not provide offline, note-level editing like dedicated pitch editors.github.com · 30 Sept 2026

MIDI

The plugin supports MIDI note output generated from detected pitch and MIDI input to control correction pitch.github.com · 30 Sept 2026

Platforms

The documentation lists Windows, macOS, and Linux builds, with plugin formats including VST3, CLAP, and AU depending on platform.ovtdocs.eiffelbs.ovh · 30 Sept 2026

License

OpenVoxTuner is free for personal and commercial use under AGPLv3, with source code available on GitHub.ovtdocs.eiffelbs.ovh · 30 Sept 2026

Privacy and transparency

The maker says the project is open source and has no telemetry or feature paywalls.github.com · 30 Sept 2026

Support

The maker directs users to GitHub issues and discussions for support and accepts project sponsorships.ovtdocs.eiffelbs.ovh · 30 Sept 2026

Intended users

The maker describes the free license as suitable for musicians, producers, studios, and educators.github.com · 30 Sept 2026

Maker

The documentation says OpenVoxTuner was built by EiffelBS using JUCE 8.ovtdocs.eiffelbs.ovh · 30 Sept 2026

Where it ranks on Everything Xiaomi

• Best Pitch Correction Software in 2026#3 of 23

Sources

• openvoxtuner.eiffelbs.ovh· checked 30 Sept 2026
• github.com/EiffelBS/OpenVoxTuner· checked 30 Sept 2026
• ovtdocs.eiffelbs.ovh· checked 30 Sept 2026