Free Online Binaural Beats Generator
Create custom binaural beats for focus, relaxation, and sleep.
Adjust frequencies, add ambient sounds, and start your session instantly.
Free to use · No account required · 17K+ sessions generated
Preset Library
Load a preset with recommended settings.
Relax
Stress Relief
5 Hz · 25 min Theta · Forest RainCalm Mind
6 Hz · 20 min Theta · Forest RainBreath Sync
7 Hz · 15 min Theta · Forest RainFocus
Deep Work
14 Hz · 45 min Beta · Brown NoiseSteady Focus
10 Hz · 25 min Alpha · Brown NoiseStudy Flow
12 Hz · 30 min Alpha · Brown NoiseCreative Focus
8 Hz · 20 min Alpha · Brown NoiseSleep
Lucid Drift
3 Hz · 25 min Delta · Forest RainPower Nap
4 Hz · 20 min Delta · Forest RainDeep Sleep
2.5 Hz · 30 min Delta · Forest RainNight Reset
1.5 Hz · 45 min Delta · Forest RainEnergy
Quick Recharge
15 Hz · 12 min Beta · Clean ToneMorning Boost
16 Hz · 15 min Beta · Clean ToneActivation
18 Hz · 10 min Beta · Clean TonePre-Workout
20 Hz · 10 min Beta · Clean ToneBinaural Generator
Create custom binaural beat sessions directly in your browser.
Playing
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What these settings do
Beat Frequency: The difference between the left and right tones, which determines the perceived binaural beat.
Carrier Frequency: The base tone used to generate the binaural beat.
Timer: Sets when the session stops. WAV export supports sessions up to 60 minutes for stability.
❤️ PureBinaural is free, independent, and ad-free.
If this session helped you find your flow, consider supporting the project to help keep the generator running for everyone.
How to Use the Generator
- Start with a preset or customize all settings manually.
- Adjust the beat, carrier frequency, and ambient sound as needed.
- Set the session duration and volume levels.
- Press play to start your session.
- Use headphones for the full binaural effect.
- Creates a link to reuse your exact settings anytime.
- 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 — resulting in a perceived 10 Hz rhythmic beat.
This process is often referred to as brainwave entrainment and is commonly associated with relaxation or focused attention.
Frequently Asked Questions
Common questions about binaural beats and this generator.
Do I need headphones for binaural beats?
Yes. Headphones are required so that 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 sessions of 20–30 minutes once they become familiar with the experience.
Longer sessions are also possible, especially for relaxation or sleep, as long as the volume is kept at a comfortable level.
Which frequency should I choose?
Choose a frequency based on your goal (sleep, relaxation, focus, or energy). For best results, use headphones. 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.
Do not 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.
Avoid listening while driving or operating machinery, as binaural beats may promote relaxation or drowsiness.
Why is the download limit set to 60 minutes?
While you can stream sessions up to 8 hours directly in your browser, the "Download" function is limited to 60 minutes. Generating high-quality audio files is a resource-intensive process for browsers. This limit ensures that the generation is stable and doesn't crash your device.
How does PureBinaural generate and process the audio?
PureBinaural generates precise sine waves in real time using the Web Audio API. Each channel is controlled independently to create the selected beat frequency.
Sessions are rendered at 44.1 kHz and normalized to safe listening levels. Smooth fade-in and fade-out are applied to ensure a comfortable listening experience.
Is using PureBinaural private?
PureBinaural runs entirely in your browser (client-side), meaning no audio data ever leaves your device or is sent to a server.
No accounts, no cookies, and no personal data collection. Sessions are generated locally on your machine for 100% privacy.
To help improve the project, we use basic, anonymous usage statistics that do not track or identify you in any way.