Binaural Beat Generator
Generate binaural beats by playing two slightly different sine tones to each ear, using the Web Audio API. Use headphones. Nothing is uploaded.
Use headphones — the two ears must hear different tones for the beat to form.
Pure browser JavaScript — uses the Web Audio API (two OscillatorNodes + StereoPanner).
How to use this tool
- Put on headphones (binaural beats require a different tone in each ear).
- Set the carrier frequency and the beat (difference) frequency.
- Click Play; the left ear gets carrier minus half the beat, the right ear gets carrier plus half.
Generate binaural beats by playing two slightly different sine tones to each ear, using the Web Audio API. Use headphones. Nothing is uploaded.
Frequently asked questions
- Why do I need headphones?
- Each ear must receive a slightly different frequency. The perceived 'beat' is created in the brain from the difference, which only works when the tones aren't mixed in the air.
- Are binaural beats a medical treatment?
- No. This is an audio toy; it is not a medical device and makes no health claims.