reTuner
23 MB
reTuner is an open-source audio pitch shifting plugin that converts music between tuning standards (A440, A432, etc.) with professional quality. Powered by the Rubber Band Library, this cross-platform plugin (VST3, LV2, CLAP, AU) delivers artifact-free pitch shifting while preserving audio character. Perfect for musicians, producers, and wellness content creators. Includes standalone app with file export. GPL-3.0 licensed with free lifetime updates.
reTuner: Free Open Source Pitch Shifting Plugin for Music Tuning Conversion
Professional-quality audio pitch shifting to convert music between A440, A432, and other tuning standards
reTuner is a free, open-source audio plugin that converts music between tuning standards like A440 and A432 while maintaining exceptional audio quality. Powered by the Rubber Band Library and built with the JUCE framework, reTuner delivers artifact-free pitch shifting for musicians, producers, audio engineers, and wellness content creators.
Key Features
High-quality pitch shifting – Professional-grade algorithms from the open-source Rubber Band Library
Precise frequency control – Adjust source and target A4 frequency from 380-460 Hz with volume control
Universal plugin compatibility – Available in VST3, LV2, CLAP, AU formats plus standalone application
Cross-platform support – Works on Windows, macOS, and Linux
Open source freedom – GPL-3.0 licensed and community-developed
Perfect For
Converting A440 to A432 Hz for meditation and healing music
Adapting vintage recordings to match modern tuning standards
Creating wellness and therapeutic audio content
Audio post-production, restoration, and mastering workflows
Technical Specifications
Pitch range: ±3 semitones (380-460 Hz A4 tuning)
Volume range: -60 dB to +12 dB
Latency: Optimized for real-time processing
Processing: Formant-preserving pitch shift algorithm
System Requirements
Windows: 10 or 11 (64-bit)
macOS: 10.15 or later (Intel and Apple Silicon)
Linux: Ubuntu 18.04 or newer
RAM: 4 GB minimum, 8 GB recommended
What’s Included
Multiple plugin formats: VST3, LV2, CLAP, and AU
Standalone application with audio file playback
Complete user manual and installation guide
Full source code access under GPL-3.0 license at our Github.
Why reTuner?
Professional algorithms – Industry-standard Rubber Band Library technology
Transparent and open – No vendor lock-in, inspect the code yourself
Active development – Community-driven support and improvements
Universal compatibility – Works in any DAW or as a standalone tool with built in audio player.
reTuner.1.0.0_WIN ( 6 MB )
reTuner.1.0.0_MAC ( 18 MB )
