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Free tool · web audio

Free Binaural Beat Generator

Set the left- and right-ear frequencies. See the beat. Hear the entrainment. Works in your browser with no download, no signup, and no ads.

Beat 10.0 Hz
ALPHA
Signal · stereo

Use headphones — binaural beats need per-ear delivery. Start at low volume.

Quick presets

What this tool does

Two oscillators, one per ear, one live beat

This generator runs two sine-wave oscillators in your browser: one panned hard-left, one panned hard-right. When you wear headphones, your left ear receives one frequency and your right ear receives another. Your brain perceives the difference as a phantom pulsing beat.

If the left ear hears 200 Hz and the right hears 210 Hz, the beat frequency is 10 Hz, squarely in the alpha band. The idea behind entrainment is that the brain's own rhythms drift toward that pulse. Whether it reliably does is contested; the frequency guide covers the evidence.

The oscilloscope shows the combined signal as a scrolling waveform. The live band indicator updates as you change the frequencies. Watch it shift from ALPHA to THETA to DELTA as you decrease the right-ear frequency toward the left-ear carrier.

Beyond this tool

What Arkhitec adds on top

  • 47 curated binaural presets across every brainwave band, with tested entrainment ramps: the carrier frequencies shift smoothly over time instead of jumping to full effect.
  • 7-layer sound mixer to layer binaural beats beneath rain, ocean, forest, piano, or singing bowls. The ambient layer makes it genuinely enjoyable.
  • Smart Mix Engine auto-balances levels so the entrainment signal stays audible without dominating the mix.
  • Audience-specific preset packs for gamers, athletes, tech workers, and students: the right frequency and soundscape combined for your actual context.
  • Saved custom mixes — build your favorite binaural + soundscape combination once, recall it with one tap anywhere.

Stay in the loop

Arkhitec is out now on the App Store and Google Play. Prefer email? Get occasional product updates.

FAQ

Frequently Asked Questions

Everything you need to know about using the free binaural generator.

How do I use this binaural beat generator?
Pick a preset (Delta, Theta, Alpha, Beta, or Gamma) or enter your own left- and right-ear frequencies. Put on headphones — binaural beats require different frequencies in each ear to work. Press Start Generator. The live readout shows the beat frequency (the difference between the two tones) and the brainwave band that frequency falls in. Adjust volume with the slider. Use the session timer to track how long you've listened.
Why do binaural beats need headphones?
Binaural beats depend on your brain creating the beat by combining two slightly different frequencies, one from each ear. If both ears hear both frequencies (as happens through speakers), the effect is lost. For the generator to work properly, use headphones, earbuds, or AirPods. If you don't have headphones available, consider isochronic tones or monaural beats instead; both work through speakers.
What frequencies should I choose?
Depends on your goal. Delta (0.5–4 Hz) for deep sleep. Theta (4–8 Hz) for meditation or subconscious work. Alpha (8–13 Hz) for calm focus or creative flow. Beta (13–30 Hz) for active concentration. Gamma (30–100 Hz) for peak performance states. Carrier tone matters as well as the beat frequency, and lower carriers are generally easier to listen to for long sessions. Start with a preset and adjust from there.
How long should I listen?
Ten to fifteen minutes is usually enough to know whether you respond at all. Longer sessions don't necessarily help more. For sleep, 20–30 minutes with a gradual fade works well. For focus, match the session to your work block (25 or 45 minutes). Experiment; individual response varies.
Are binaural beats safe?
For most people, yes: they simply encourage your brain to produce patterns it naturally generates. People with epilepsy, seizure disorders, or who are pregnant should consult a healthcare provider before using brainwave entrainment audio. These are not a replacement for medical treatment.

Where the free generator ends, Arkhitec begins.

Download Arkhitec and turn binaural beats into a full neuro-performance platform.

Download on the App Store Get it on Google Play
Find Your Frequency

Arkhitec is an audio tool, not a medical device, and nothing here is a substitute for professional care. If you have epilepsy or a seizure disorder, check with your doctor before using brainwave entrainment audio, and don't play sleep or deep-relaxation audio while driving.