Binaural Beats Generator
Set a left tone and a frequency difference. The right tone is the left frequency plus that difference. Use stereo headphones to keep the channels separate.
The frequency difference describes an acoustic effect only. This tool does not claim treatment, focus, relaxation or sleep benefits. A 20% digital gain cap does not guarantee a safe sound level; device and headphone volume still matter. Playback uses Web Audio after your click, stops when the page is hidden, and requests no microphone access. Nothing is recorded, uploaded or exported.
A QUICK WALKTHROUGH
How to use this tool
- Set a left frequency of 100–1,000 Hz and a difference of 0.1–40 Hz.
- Choose 1–300 seconds and a volume up to 20%; begin at a low device volume.
- Click Play to start, or Stop to end. Changing settings stops playback.
Acoustic effect and local playback
The frequency difference describes an acoustic effect only. This tool does not claim treatment, focus, relaxation or sleep benefits. A 20% digital gain cap does not guarantee a safe sound level; device and headphone volume still matter. Playback uses Web Audio after your click, stops when the page is hidden, and requests no microphone access. Nothing is recorded, uploaded or exported.
GOOD TO KNOW
Common questions
What are the two output frequencies?
For a 200 Hz left tone and 10 Hz difference, the right tone is 210 Hz. Stereo headphones keep the tones separate; mono output may mix them.