Three studio-grade audio tools for focus, sleep, and meditation — monaural beats and isochronic tones that work on any speaker, plus binaural beats for headphone sessions. Presets, noise overlay, and session tracking included.
The beat is mixed directly into the audio signal — works on any speaker or headphone, no stereo channel separation required.
Slightly different frequencies sent to each ear — your brain perceives the difference as a beat. Requires stereo headphones for the effect to work.
A single tone pulsed sharply on and off at the entrainment rate. Strong evoked response without headphones — many find these the most direct of the three.
Adjust base frequency (80–600 Hz), beat frequency (0.5–50 Hz), carrier waveform, and volume. Fine-tune to exactly what works for you.
Quick presets for Delta, Theta, Alpha, Beta, and Gamma ranges with real-time band identification and descriptions.
Real-time waveform display powered by the Web Audio API analyser node. See the interference pattern as it plays.
Unlike binaural beats, monaural beats mix externally. The amplitude modulation is in the signal itself — any speaker works.
Set timed sessions from 5 to 60 minutes. Audio fades out automatically when your session ends.
Add to your home screen on any device. Works offline after first visit. No app store needed.
Brain Beats is free and always will be.
If these tools help you focus, sleep, or meditate, a small donation keeps the lights on and the project growing — no ads, no accounts, no tracking.
Tip any amount via PayPal.me — works with a PayPal balance, bank, or card. Opens in a new tab.
Donate with PayPalSend to one of the wallets below. Click the address to select it, or use the copy button.
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