Voice Changer .io

A simple online voice changer app to transform your voice and add effects. Voice Changer can make your voice deeper, make your voice sound like a girl/guy, change and distort your voice so it's anonymous, make you voice sound like a robot, darth vader, a monster, and a tonne of other - best of all, Voice Changer is free! Frequently asked questions are at the bottom of the page :)

choose an audio input method:


Monster Voice Changer

This one changes your voice so it sounds sort of like a big evil troll/monster. Behind the scenes I've done some fancy stuff with oscillating signals such that it's deeper and slightly distorted (like the monster's voice box is a bit damaged or something), and then I've cleard out the high frequency parts of the signal to smooth it off.
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PA Speaker Voice Changer

This one is meant to sound like a booming PA (public announcement) speaker that's very bad quality. I imagined it was from some sort of distopian authoritarian government telling its citizens what to do, but I think you could just as easily use it as if it was a PA speaker from the 50s or something. It first distorts your voice a bit and makes the signal noisy and then adds an echo effect.
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Reverse Reverb Voice Changer

This one uses a "reverse reverb" effect to essentially make your voice echo backwards. It gives your voice an eerie vibe that sounds like a ghost or spirit from a horror movie.
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Echo Voice Effect Online

This voice effect simply makes it sound like you're standing in a very large room. The echo is applied using a very cool audio technique known as "impulse response convolution".
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Telephone Voice Changer

This one simply removes high and low frequencies to simulate the effect of your voice being transmitted through a telephone.
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Alien Voice Changer

This adds a very strange wobbling effect to your voice which make it sound like an alien who has learned how to speak your language, but it struggling - it's an alien accent, if you will.
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Wobbling Voice Changer

This one is fun :) It oscillates your voice between high and low pitches in a way that makes it seem like time isn't flowing consistently - something's gone wrong with reality.
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Alien Voice Changer

This one sounds like a dangerous alien - perhaps one that is part robot or something.
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Robot Alien Voice Changer

I got a robot alien vibe from this one when I stumbled across it. It's also a little insect-like. So maybe a robot alien insect.
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Anonymous Voice Changer

We've all heard the anonymising voice effect before, and this one is similar, except it adds a slight distortion to your voice to make it more on the "hacker" side of things. Note that this shouldn't be used for real anonymising! It's just for fun.
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Reversed Voice Converter

This simply takes your input audio and reverses it :)
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Old Radio Audio Effect

This effect adds some fuzz and distortion, and plays around with the frequency spectrum a bit to try and emulate the sound of an old radio.
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Cymbal Voice Effect

This is a strange one. It uses "impulse response convolution" to create an "echo" of your voice that sounds a bit like a cymbal in a drum kit.
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Dalek Voice Changer

This uses a "ring modulator" to simulate the same electronics that were used to generate the Dalek's voice in Doctor Who. You should do try to make your voice sound like the Dalek's when you record the audio, and this effect will do the rest.
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Wah-Wah Voice Effect

This adds a "wah-wah" effect to your voice. The "wah-wah" effect is often used in certain types of music via the use of a "wah-wah" pedal.
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Vibrato Voice Effect

This ads a steady pitch oscillation to the input audio which (if applied to singing) can make it sound like your singing with vibrato when you're not.
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Demon Voice Changer

With this effect I tried to create the sense that it was an epic demon beast thing. Much like the Balrog from Lord of the Rings. It adds some fire crackling effects in the background, deepens your voice, and adds an ominous echo.
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Cave Echo Voice Changer

This one adds an echo that makes it sound like the voice is coming from a huge cave.
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Robot Voice Changer

This gives your voice a metallic, higher pitched timbre which makes it sound like it's coming from a robot.
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Robot Voice Changer

This gives your voice a very harsh, slightly fuzzy and robotic sound.

Robot Voice Changer

This changes your voice into a very "tinny" little robotic-sounding voice.

Robot Voice Changer

This adds some random "beep boop" noises to the background and gives your voice a very computerised timbre.
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Very Slow Voice Effect

This makes your voice very slow (quarter speed).
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Slow Down Audio

This one slows down your voice to half speed.
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Speed Up Audio

This one doubles the speed of your voice.
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Very Fast Audio Effect

This generates an audio clip that's 4 times as fast as the input clip.
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Portable Radio Effect

This manipulates the input so that it sounds like a very old portable radio. Depending on the level of noise in the input audio clip, the output may actually be hard to understand.
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Audio Jumbler

This one chops your input clip up into pieces and then scrambles them around randomly.
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School PA Voice Effect

Changes your voice so it sounds like it's coming from an old and run-down school PA speaker.
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Noisy Audio Effect

This effect makes your input audio sound like it has been transmitted via an extremely noisy medium.
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Sauron Voice Changer

I've tried to make this effect sound like Sauron's voice (from Lord of the Rings). He doesn't talk much in the movies, but when he does it's very deep and has a slight ominous echo.

Russian Voice Effect

This is a silly effect that chops up the audio clip into segments, reverses them, and then puts them all back together. It sounds a little like some eastern European languages.

Silly Voice Effect

This one does some funky reversing stuff that just makes the output audio sound very strange and confusing but still understandable.

Cute Robot Voice Changer

Tiny Robot Voice Changer

Satan Voice CHanger

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Astronaut Voice Changer

Very Deep Voice

Deep Voice Changer

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High Voice Changer

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Chipmunk Voice Changer

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Synth Voice Effect

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Megaphone Voice Changer

Bane Voice Changer

This effect applies a slight radio-like distortion to the input audio which makes it sound like it's coming from Bane's make (Bane form the Batman series).
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Note: For some voices (Bane and Dalek, for example), you'll need to put on the correct "accent" for the voice transformation to work properly. Basically, try to make your voice sound like the target voice, and the engine will add some effects to make it sound like the real thing. Another random tip: You'll need to talk relatively slowly if you're using any of the "echo-ey" voices, otherwise the echos will make it hard to understand.

You can use the generated audio clips for any purpose at all (commercial usage included). There's no need to credit voicechanger.io if you don't want to. You can leave feedback here, but please note this is just a hobby project so I won't be updating the site regularly. Thanks for stopping by - I hope you find this site useful!