Free Online Binaural Beats Generator

Create custom binaural beats for focus, relaxation, and sleep.

Start instantly in your browser — no account needed.

No account required • No tracking • Runs in your browser

Open Generator Browse Presets

Preset Library

Start with ready-made sessions for focus, relaxation, and sleep.

Relax

Theta Frequencies for Deep Relaxation

Body Release

4.5 Hz · 30 min Theta · Forest Rain

Stress Relief

5 Hz · 25 min Theta · Forest Rain

Calm Mind

6 Hz · 20 min Theta · Forest Rain

Breath Sync

7 Hz · 15 min Theta · Forest Rain

Focus

Alpha & Low Beta Frequencies for Focus

Deep Work

14 Hz · 45 min Beta · Brown Noise

Steady Focus

10 Hz · 25 min Alpha · Brown Noise

Study Flow

12 Hz · 30 min Alpha · Brown Noise

Creative Focus

8 Hz · 20 min Alpha · Brown Noise

Sleep

Delta Frequencies for Deep Sleep & Recovery

Lucid Drift

3 Hz · 25 min Delta · Forest Rain

Power Nap

4 Hz · 20 min Delta · Forest Rain

Deep Sleep

2.5 Hz · 30 min Delta · Forest Rain

Night Reset

1.5 Hz · 45 min Delta · Forest Rain

Energy

Beta Frequencies for Energy & Alertness

Quick Recharge

15 Hz · 12 min Beta · Clean Tone

Morning Boost

16 Hz · 15 min Beta · Clean Tone

Activation

18 Hz · 10 min Beta · Clean Tone

Pre-Workout

20 Hz · 10 min Beta · Clean Tone

Binaural Generator

Create custom binaural beat sessions directly in your browser.

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Start your session instantly

21K+ sessions generated

Save a high-quality audio file for offline listening (up to 60 min)

What these settings do

Beat Frequency: The difference between the left and right tones, creating the binaural beat.

Carrier Frequency: The base tone used to generate the sound.

Ambient Sound: Optional background audio (rain, noise, etc.).

Tone Volume: Controls the volume of the tones.

Ambient Volume: Controls the volume of the background sound.

Timer: Sets when the session stops (up to 60 minutes for WAV export).

❤️ PureBinaural is free, independent, and ad-free.

If it helps you, consider supporting the project to keep it running.

How to Use the Generator

  1. Start with a preset or customize all settings manually.
  2. Adjust the beat, carrier frequency, and ambient sound.
  3. Set the session duration and volume levels.
  4. Press Play to start your session.
  5. Use headphones for the full binaural effect.
  6. Save your session to reuse the same settings anytime.
  7. Download your session for offline listening if needed.

How Binaural Beats Work

Binaural beats are created by playing two slightly different frequencies in each ear — for example, 200 Hz in one ear and 210 Hz in the other. Your brain perceives the difference as a 10 Hz rhythmic beat.

This effect is often called brainwave entrainment and is commonly associated with relaxation, focus, or sleep.

Learn more about binaural beats →

Diagram showing how binaural beats are created using two different frequencies in each ear

Frequently Asked Questions

Answers about binaural beats, safety, and how to use the generator.

Do I need headphones for binaural beats?

Yes. Headphones are required so each ear receives a slightly different frequency, creating the binaural effect.

How long should I listen to binaural beats?

If you’re new, start with 10–15 minutes. Many users prefer 20–30 minute sessions once they get used to it.

Longer sessions are also fine for relaxation or sleep, as long as the volume is comfortable.

Which frequency should I choose?

Choose a frequency based on your goal — sleep, relaxation, focus, or energy.

You can explore detailed explanations on our page about binaural beat frequencies.

Learn more about brainwave frequencies →
Are binaural beats safe?

Generally yes, when used responsibly and at comfortable listening levels.

Avoid use if you have epilepsy or a history of seizures. If you have a medical condition, are pregnant, or use a pacemaker, consult a healthcare professional before use.

Do not listen while driving or operating machinery, as binaural beats may promote relaxation or drowsiness.

Why is the download limit set to 60 minutes?

You can stream sessions up to 8 hours in your browser, but downloads are limited to 60 minutes.

Generating high-quality audio files is resource-intensive, and this limit helps ensure stable performance across devices.

How does PureBinaural generate the audio?

PureBinaural generates precise sine waves in real time using the Web Audio API, with each channel controlled independently.

Sessions are rendered at 44.1 kHz, normalized to safe levels, and include smooth fade-in and fade-out.

Is using PureBinaural private?

PureBinaural runs entirely in your browser, so no audio data leaves your device.

No accounts, no cookies, and no personal data collection.

We use only basic, anonymous usage statistics to improve the project.