Multiple tones · chords · binaural beats
The multi-tone generator.
Stack up to eight pure tones at once. Build chords, explore how frequencies interact, or pan two tones left and right for binaural beats — all click-free, right in your browser.
How to use the mixer
- Add or remove tones with “Add tone” and the ✕ on each row. Each row is one oscillator.
- Set each tone — type a frequency, pick a waveform, and set its volume. The nearest musical note is shown under the frequency.
- Pan left/right with the Pan slider. For binaural beats, pan one tone hard left and another hard right with a few hertz of difference between them.
- Mute a tone with the dot on the left to A/B it against the others without deleting it.
About the multiple tone generator
Most tone generators play a single pitch. A multiple tone generator lets you sound several at once, each with its own frequency, waveform, volume and stereo position. That opens up things a single oscillator can’t do: build a chord from individual notes, recreate a two-tone test signal, or set two close frequencies playing together to hear them beat.
This multi tone generator runs entirely in your browser, so there’s nothing to install and no cap on how often you use it. Add a voice with one click, tune each one by typing a frequency or dragging its slider, and mute or solo any voice to compare it against the rest. A gentle limiter on the output keeps the combined signal clean as you stack more tones, up to eight at a time.
Because it works as an online multi tone generator, it’s useful wherever you’d otherwise reach for hardware: layering drones for ambient music, checking how two frequencies interact through a speaker, or generating binaural beats by panning one tone left and another right with a few hertz between them. It’s also a quick way to demonstrate intervals and harmony without an instrument, and everything stays on your device for as long as you leave it playing.
If you only need one pitch, thesingle tone generator is simpler; when you need more than one, the multiple tone generator online here gives you room to experiment.
Multi-tone FAQ
What is a multi-tone generator?
It plays several pure tones at the same time. Each tone (or “voice”) has its own frequency, waveform, volume and stereo position, so you can build chords, test how frequencies interact, or generate binaural beats.
How do I make a binaural beat?
Use headphones, then load a binaural preset — or add two tones, pan one fully left and the other fully right, and give them a small frequency difference (for example 200 Hz and 204 Hz for a 4 Hz beat). Your brain perceives the difference as a pulsing “beat”.
How many tones can I stack?
Up to eight simultaneous tones. A gentle compressor on the output keeps the combined signal from clipping as you add more voices.
Why do I need headphones for binaural beats?
A binaural beat only works when each ear receives a slightly different frequency in isolation. Speakers let both tones reach both ears, which mixes them into an ordinary acoustic beat instead.
Looking for a single tone? Use the main tone generator or browse preset frequencies.