Free Chorus Voice Changer

One mic, several of you: a free chorus effect for live voice.

Before and after

Free chorus voice changer

Your browser will ask for microphone access when you click.

More versions

Variation: Mix 75% with feedback: more voices in the group.
Variation: With a 2.5-second reverb: a choir in a hall.

Use it in calls and on recordings

Try it here
Press Start mic above and talk. You hear this voice with the exact settings on this page, and every slider can be moved.
Use it live
Press Use this voice in calls, then pick Facecam Virtual Mic as the microphone in Discord, Google Meet, Zoom or any other call that runs in Chrome.
Put it on a recording
Open Online Voice Changer, record or upload a file, choose the same settings and download the result.

More about this voice

How one voice becomes a group

Part	Setting	What you hear
Second voice	Chorus / vibrato 50% mix	A copy as loud as you, never quite in step
Drift	Wobbles 0.9 times a second	The copy sliding slightly sharp, then flat, like a real second speaker
Tidy lows	Bass cut below 90 Hz	Doubled rumble kept from muddying the blend

Nothing else is changed: no pitch shift, no echo, no room. That keeps it useful under other sliders, for example with Pitch lowered for a group of deep voices.

Speak as a crowd would

Chant. Even rhythm and equal stress on each word is how groups speak in unison, and the doubling fits it.
Stay on a steady pitch through each phrase. Slides and swoops expose that the second voice is a copy.
Use plural lines: a crowd answering, a council giving its ruling, a team shouting a name.
Keep a normal mic distance and a full voice. Whispered words have too little note to double.

Good places for a doubled voice

Singers use chorus to thicken a thin take, and it does the same for a solo karaoke stream. In roleplay it makes hive minds, twins who speak together and cult chants. For a podcast intro it adds width without sounding like an effect. Mix 75% with feedback puts more voices in the group, at some cost in clarity. With a 2.5-second reverb the group becomes a choir in a hall, best for singing and slow speech.