Free helium voice changer

The real helium effect, live: your voice keeps its note but sounds tiny and squeaky. Free, no sign-up.

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Before and after

Free helium voice changer

Variation: Tone +4: one small breath of helium.
Variation: Pitch +4 as well: helium plus a higher voice, closer to a cartoon.

The exact settings

Setting	Value
Noise gate	mutes the mic below -55 dB, between words
Pitch	0 (unchanged)
Tone	+7 (sounds smaller)
Bass cut	below 150 Hz
Treble	+3 dB above 4 kHz

More about this voice

Helium doesn't make you higher

Your vocal cords vibrate at the same rate in helium, so the note of your voice barely moves. What changes is the resonance of your throat and mouth: sound travels faster in helium, so those resonances jump up, and your voice sounds as if it came from a much smaller head. A chipmunk effect raises the note too; helium doesn't.

That's why this voice starts from the Girl preset with Pitch set back to 0 and Tone raised to +7. The settings table shows exactly that, plus a bass cut and a little brightness on top.

How much helium

Clip	Settings	Sounds like
One breath	Tone +4	A small balloon's worth
Full balloon	Tone +7 (this voice)	The classic party trick
Plus pitch	Tone +7, Pitch +4	Closer to a cartoon or chipmunk