Free · No Account · Open Source

Brain Beats — precision brainwave audio

Two studio-grade audio tools for focus, sleep, and meditation — monaural beats that work on any speaker, and binaural beats for headphone sessions with presets, noise overlay, and session tracking.

Monaural Studio Binaural Studio
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Choose your experience
What you get
🎛️

Full Customization

Adjust base frequency (80–600 Hz), beat frequency (0.5–50 Hz), carrier waveform, and volume. Fine-tune to exactly what works for you.

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5 Brainwave Bands

Quick presets for Delta, Theta, Alpha, Beta, and Gamma ranges with real-time band identification and descriptions.

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Live Visualization

Real-time waveform display powered by the Web Audio API analyser node. See the interference pattern as it plays.

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No Headphones Needed

Unlike binaural beats, monaural beats mix externally. The amplitude modulation is in the signal itself — any speaker works.

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Session Timer

Set timed sessions from 5 to 60 minutes. Audio fades out automatically when your session ends.

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Installable PWA

Add to your home screen on any device. Works offline after first visit. No app store needed.

Brainwave frequency guide
Delta δ
0.5 – 4 Hz Deep sleep · Healing · Recovery
The slowest brainwave frequency. Dominant during dreamless sleep and deep