Put on headphones, pick a frequency or a brainwave band, then layer in ambience and music to build your own calming mix — right in your browser. No signup, nothing to install.
Put on headphones and press play. Tracks loop with a gentle crossfade — bring up the ambience and music to build your own mix.
Put on a pair of headphones — this is not optional. A binaural beat is created inside your head from two slightly different tones, one in each ear, so without headphones the two tones just mix in the air and the effect disappears. Pick a brainwave band or set your own beat frequency, keep the volume low, and let it sit gently in the background. Then bring up an ambience track (rain or waves) and a music track on top — both loop seamlessly with a gentle crossfade, so you can layer a complete little soundscape rather than enduring bare tones. For the full picture of what these beats are and what they can and can't do, read my complete, honest guide to binaural beats.
Start with the band that matches your goal, then treat it as a place to experiment from rather than a magic number. The presets above map to the four bands most people use:
| Band | Beat frequency | Typically used for |
|---|---|---|
| Delta | 0.5–4 Hz | Deep sleep |
| Theta | 4–7 Hz | Meditation & lucid dreaming |
| Alpha | 8–13 Hz | Relaxed, calm wakefulness |
| Beta | 13–30 Hz | Focus & studying |
The carrier slider sets the base pitch the beat rides on. Lower carriers (around 100–200 Hz) tend to feel warmer and less fatiguing; the beat frequency — the difference between your two ears — is the part that actually matters for the band you're targeting. If you'd rather not wear headphones at all, isochronic tones are the alternative worth knowing about.
I'll be straight with you, because most pages with a generator on them won't: there is no strong evidence that a particular frequency reliably produces a particular mental state, and anyone promising guaranteed results is overselling. What a calm tone can do is help you relax and give your attention something steady to rest on. That's a smaller, more honest claim — and in my experience it's the true one. Bare tones can also sound clinical, so most people do far better layering them quietly under rain or soft music, which is exactly what the Inner·Wave app is built to do.
Is this binaural beats generator free?
Yes, completely. There's no signup, no account, and nothing to install — it runs in your browser using the Web Audio API. Put on headphones, choose a frequency, and press play. Nothing you do here is sent anywhere or stored.
Do I need headphones?
Yes. The beat is produced inside your brain from two slightly different tones, one per ear. Through speakers the tones simply blend in the air and the binaural effect is lost. If headphones are uncomfortable, isochronic tones work without them instead.
What frequency should I use?
Match the band to your goal: delta (around 2 Hz) for sleep, theta (around 6 Hz) for meditation, alpha (around 10 Hz) to relax, beta (around 18 Hz) for focus. Treat these as starting points to experiment from, not guaranteed settings.
Can I layer ambience and music with the beat?
Yes. Add a rain or waves ambience track and a music track on top of the beat, each with its own volume. Both loop with a gentle crossfade. It's a small taste of how the Inner·Wave app layers full soundscapes.
Are binaural beats safe?
For most people, yes — they're just quiet sound. Keep the volume low to protect your hearing. If you have epilepsy or a history of seizures, check with a doctor first, since rhythmic stimulation can be a trigger for some people.
This tool keeps its claims deliberately modest. Here's where the framing comes from, so you can judge it yourself rather than take my word for it.
This is a small taste of the idea. Inner·Wave goes further — add a guiding voice, gentle affirmations and breathing guidance to the mix, shape every layer, and save it as a preset you can return to anytime. It's free to try.
Get Inner·Wave free