Work you have to stay in
No melody to follow, no loop burning into your head. An environment that keeps composing itself — press Focus and forget about it for an hour.
Real-Time Web Audio API
Focus On Demand
STEREO HEADPHONES REQUIRED - Binaural beats need L/R separation
Real-time binaural beats. Offline PWA. No subscriptions.
<10msLatency
32-bitAudio
30:00
LIVE SYNTH
40Hz
Why do you need this?
It's not another music app. Three jobs it does well — and nothing it pretends to do.
The world is too loud
The neighbour is drilling, the open office is chatting. The app measures the noise level — level only, it records nothing — and raises the noise floor until distractions stop cutting through.
3 a.m., can't fall asleep
Rest fades out over the last 30 seconds instead of ripping you awake. The screen can go to sleep — and your battery won't pay for it.
What you give in return: nothing. No account, no email, no server, no subscription — it works offline, and your data stays in your browser.
Honestly: binaural beats have a real but modest effect. This is not medicine — and the app says plainly where the evidence is strong and where it isn't.
Try it for 30 secondsWhy Technical Users Choose Real-Time
Unlike streaming services that require constant internet and hide their algorithms, rawwave generates audio locally with full transparency.
| Feature | RawWave | Streaming |
|---|---|---|
| Headphones | Stereo Only | Stereo Only |
| Offline | PWA | Internet |
| Pricing | Free Forever | $9.99/mo |
| Background | MediaSession | Stops |
| Size | < 1MB | 150MB+ |
| Battery | Local Synth | High Drain |
Built for Control Freaks
No black box. Just math. Every frequency, every decibel, every waveform — visible and adjustable.
Offline-First PWA
Install once, use forever. No internet required after installation. Perfect for flights, basements, or saving mobile data.
Zero data usageGlass Box Approach
See exactly what you're hearing: 40Hz Gamma at -6dB, Brown noise at -12dB. Every parameter visible and adjustable.
Full transparencyProtocol Library
Pre-configured protocols for Focus, Sleep, Meditation, and more. Or create your own and export as JSON.
12+ presetsPowered by Web Audio API — the same engine used by professional DAWs. Real-time synthesis with <10ms latency.
Science-Backed Protocols
It's not magic. It's neuroscience.
40Hz
Gamma Focus
Peak attention
20Hz
Pink Noise + Beta
Optimal flow
2Hz
Delta Sleep
Deep restoration
How it works: Left ear (340Hz) + Right ear (342Hz) = Brain creates 2Hz "beat" (Delta) • Requires stereo headphones to trigger this neurological response
Ready to work without streaming?
Local synthesis, full control, zero fees.
Free to use. No account required. Works offline instantly.