12 Free Voice Changer VST Plugins

Graillon 2 offers real-time vocal tuning and creative tone shaping for producers and singers. It combines pitch correction, formant shifting, and pitch-shifting to achieve both natural and robotic sounds. Its built-in compressor, gate, chorus, preamp, and bitcrusher give more polish and control.

It includes three pitch engines, letting users choose between classic and updated tones. Optional tools like Pitch-Tracking Modulation, keyboard tuning, and a doubler expand vocal styles. Graillon 2 works across major systems and plugin formats, making it reliable for studio or live use.

TAL-Vocoder offers the warm, classic sound of early 80s vocoders with 11 bands for shaping rich vocal and instrument tones. Its built-in synth includes multiple analog-style oscillators, giving creative control over carrier signals and helping produce detailed, vintage-style textures.

You can use the internal synth or route external audio as a carrier for more flexibility. Features like harmonic shaping, chorus, and ESS enhancement make voices clearer and fuller. TAL-Vocoder works in popular DAWs, making it a solid tool for adding retro electronic character to any track.

Melda MAutoPitch offers automatic pitch correction for vocals and monophonic instruments, helping you keep notes in tune quickly and accurately. It includes controls for depth, speed, and scale so you can fine-tune how natural or robotic the tuning sounds.

The plugin also adds formant shifting and stereo width options for creative vocal shaping. These tools let you adjust voice character or widen the mix space. Available free in the MFreeFXBundle, MAutoPitch is a simple and effective solution for both clean tuning and stylistic effects.

Pitchproof offers real-time pitch shifting and harmony effects that recreate the sound of classic guitar pedals with modern clarity. It can shift notes up or down and blend the original and shifted signals for smooth, musical harmonies that work well on guitars, vocals, or synths.

The plugin includes options for key selection, detune for natural tone, and a built-in tuner for accurate results. With settings like mono or stereo output and Transient Fix for better attack control, Pitchproof provides flexible ways to shape your pitch without losing your original sound quality.

GVST GForm offers simple yet powerful pitch and formant shifting for monophonic vocals and instruments. It changes the pitch without altering timing and adjusts tone without changing pitch. The plugin helps shape a voice’s character, from deep and mature to bright and youthful.

With controls for pitch, formant, and oversampling, GForm gives clean sound shaping and creative flexibility. The Tweak tab adds extra control over frequency detection and gating. It’s ideal for vocal edits, special effects, or turning simple synths into expressive, vocal-like sounds.

KeroVee is a pitch correction plugin for Windows that gives vocals an autotune-style effect. It can adjust pitch in real time, mix corrected and raw sounds, and even shift entire notes up or down. Its controls allow precise tuning for both natural and robotic tones.

KeroVee offers tools like scale selection, pitch graphs, and note filters to match your song’s key. With extra settings for tone, formant, and pan, you can shape how the voice sits in your mix. It’s a simple way to fix pitch or create unique vocal effects.

4ormulator offers a wide range of voice and sound-shaping tools designed for experimental sound design and creative audio production. It can change vocals into robotic tones, create deep synthetic drones, or generate unusual textures using vocoder modes, re-synthesis, and multi-band modulation.

The plugin adds control over pitch, filters, harmonics, and modulation for shaping detailed sound layers. With features like resonance control, a step sequencer, and a virtual keyboard, 4ormulator gives producers flexible options to craft digital voices, rhythmic patterns, and otherworldly effects.

RoVee is a simple voice-changing plugin that lets you shape how a voice sounds in real time. It can switch between male, female, toy, or robotic tones using pitch and formant controls. It is designed for voice use and may react unpredictably to non-vocal sounds.

RoVee offers quick tone adjustments through controls for formant, pitch, dry mix, and effect mix. The robotic button gives voices a mechanical twist. It’s lightweight and practical for creating unique vocal effects in songs, podcasts, and experimental sound projects.

Clownfish Voice Changer offers an easy way to change your voice across any microphone-based program on Windows. It works with chat and streaming apps like Discord, Skype, and Steam, using selectable effects such as Robot, Alien, and Radio to reshape your sound instantly.

The included VST plugin lets you use the same effects inside your digital audio workstation for recordings or creative projects. You can load it like any other effect, choose a preset, or adjust the pitch to get the tone you want. It’s simple, flexible, and made for quick voice transformations.

Hot Robot offers a creative way to transform voices into classic robotic tones. It uses adjustable frequency bands that let you shape the character of your sound, from smooth and subtle to sharp and synthetic. You can choose between 4 and 40 bands for detailed tone control.

The plugin’s visual layout shows input levels and frequency activity, making it easier to see how your sound reacts. Hot Robot works on Windows as a 32-bit VST plugin and installs easily through its setup package, giving music creators a quick path to experiment with robotic voice textures.

Cannabis Vocoder offers voice transformation tools for adding robotic, melodic, or rhythmic effects to vocals. It comes in mono and poly versions, letting you process single voices or use MIDI notes for layered, polyphonic sounds. Users can save settings, adjust pitch, and mix original tones.

The plugin includes controls for octave, semitone, attack, and blend levels, making it adaptable for different song styles. While known for creative potential, user feedback notes technical issues and limited updates. Still, it remains a simple way to experiment with classic vocoder tones on Windows systems.

Robo Voice offers a way to create robotic and vintage-style voice effects by simulating the sound of a classic vocoder. It runs on Windows as a 32-bit VST plugin and gives producers tools to shape a voice with adjustable tone, width, and noise levels.

The plugin includes simple controls such as BW, DEC, NOISE, and D/W to fine-tune the sound. Visual indicators like waveform lights and an LCD screen help users monitor settings in real time. With some setup, Robo Voice can produce rich robotic textures for creative vocal work.