Free Binaural Beats Generator
Custom delta, theta, alpha, beta and gamma frequencies for sleep, focus, calm and meditation — free, no signup, right in your browser.
STANDBY — Alpha, 10 Hz beat
Shape the tone — carrier pitch, volume and reverb, with an optional slow pitch wobble.
Pick a goal, or dial in a raw brainwave band.
What the evidence says
For sleep, use delta-range binaural beats (a beat of roughly 1–4 Hz). Delta is the brainwave band of deep, dreamless sleep, and small polysomnography studies suggest delta beats can modestly increase deep sleep and shorten how long it takes to drift off.
What the evidence says
For focus, alpha-range binaural beats (around 8–13 Hz) can help you settle into a calm, alert state. The honest caveat: one large study found binaural beats actually hurt performance on hard, complex problem-solving — so they suit easing into work better than powering through your most demanding analytical task.
What the evidence says
Anxiety is where binaural beats have their strongest evidence. A meta-analysis of 14 studies found a medium reduction in anxiety (Hedges’ g ≈ 0.45), typically using alpha or theta frequencies, with effects often appearing within 5–30 minutes. Important: never use beta for anxiety — it can make anxiety worse.
What the evidence says
For meditation, theta-range binaural beats (around 4–8 Hz) match the slow, drowsy-but-aware brainwaves of deep meditative and early-sleep states. Many people find theta beats help them drop into a session faster; the formal evidence is emerging rather than settled.
What the evidence says
For studying, alpha-range beats (around 8–13 Hz) can help you settle into calm, sustained concentration. Be realistic, though: the evidence for boosting actual learning is weak, and one large study found binaural beats hurt performance on complex problem-solving — so they’re better for reading and review than for your hardest analytical work.
What the evidence says
For ADHD, the honest answer is that binaural beats are largely unproven — the better-supported sound tool is plain white noise. A 2024 meta-analysis found no controlled studies behind the viral “brown noise for ADHD” trend, while white noise has modest support. If you try binaural beats for ADHD focus, use alpha (8–13 Hz) for calm concentration and never beta — and treat sound as a complement to proper care, not a treatment.
What are binaural beats?
Binaural beats are an auditory illusion: when one ear hears a tone at, say, 200 Hz and the other hears 210 Hz, your brain perceives a third pulsing “beat” at the 10 Hz difference. That beat is tuned to a target brainwave band — the idea being to gently nudge your mental state toward relaxation, focus, or sleep.
The brainwave bands
| Band | Frequency | Mental state | Best for |
|---|---|---|---|
| Delta | 0.5–4 Hz | Deep, dreamless sleep | Sleep, restoration |
| Theta | 4–8 Hz | Drowsy, meditative, REM | Meditation, creativity |
| Alpha | 8–13 Hz | Relaxed but alert | Calm, anxiety relief, light focus |
| Beta | 13–30 Hz | Awake, engaged, thinking | Active concentration |
| Gamma | 30–100 Hz | Peak attention, binding | High-level processing |
Binaural vs monaural vs isochronic
Binaural beats aren't the only kind of brainwave audio. Here's how the three compare:
| Type | How the beat is made | Headphones | On speakers? | Evidence |
|---|---|---|---|---|
| Binaural | A different tone in each ear; the brain perceives the difference as a beat | Required | No | Largest evidence base (anxiety g≈0.45) |
| Monaural | Two tones mixed into one signal before they reach your ears | Optional | Yes | Stronger EEG response; less studied |
| Isochronic | A single tone pulsed on and off at the target rate | Optional | Yes | Strongest modulation; survives background noise |
Does it actually work? (the honest version)
Binaural beats are real and worth trying — but the marketing usually oversells them. Here's what the better research shows, including where the effect is weak or absent:
- Garcia-Argibay et al., 2019 (meta-analysis, 14 studies): Binaural beats produced a medium reduction in anxiety (Hedges’ g ≈ 0.45) and benefits for memory and pain perception. This is the strongest evidence in the field.
- Klichowski et al., 2023 (N ≈ 1,000): Binaural beats WORSENED performance on complex fluid-intelligence tasks versus silence — a reminder they are not a universal cognitive booster.
- Aparecido-Kanzler et al., 2021 (systematic review): About 82% of randomised trials showed auditory beat stimulation outperformed control conditions on the measured outcome — though effect sizes and quality vary widely.
Roughly 20–40% of people don’t respond to binaural beats, and effects vary with the task, your baseline state, and expectation. Treat this as a relaxing ritual to experiment with, not a guaranteed switch. Several studies show behavioural benefits without confirmed EEG “entrainment”, so part of the effect may come from relaxation, focused attention, and expectation rather than the beat itself.
How to use binaural beats
- Put on stereo headphones. Binaural beats only form when each ear hears a different tone — headphones are required.
- Pick your goal. Choose Sleep, Focus, Anxiety, Meditation or Studying to load the right frequency, or pick a raw band.
- Press play and settle in. Start playback at a low, comfortable volume and relax your breathing.
- Give it 15–30 minutes. Effects build over time rather than switching on instantly. Stay consistent across sessions.
Myths worth ignoring
“Layer pink or brown noise under binaural beats for a deeper effect.”
Pink and brown noise actually abolish binaural-beat entrainment on EEG — their low-frequency energy masks the beat. If you want a noise layer, pair it with isochronic tones instead, which survive background noise.
— Ingendoh et al., 2023“Beta frequencies calm you down.”
Beta is an alert, activating band. For anxiety it can make things worse, not better — reach for alpha or theta instead. We never recommend beta for calm or sleep.
— Lane et al., 1998“Brown noise is proven to help ADHD focus.”
A 2024 meta-analysis found zero controlled studies on brown noise for ADHD despite its viral popularity. The (modest) evidence for noise and ADHD is for white noise, not brown.
— Nigg et al., 2024Is it safe?
- Generally safe for healthy adults at comfortable volumes.
- If you have epilepsy or a seizure disorder, talk to your doctor before using brainwave audio.
- Never listen while driving or operating machinery — some frequencies are relaxing or drowsy-making.
- Keep the volume moderate to protect your hearing; louder is not more effective.
- There’s little research in children or during pregnancy — when unsure, keep sessions short and gentle, or skip it.
Explore by goal
Each page loads the right frequency and the honest evidence that goes with it:
Frequently asked questions
What are binaural beats?
Binaural beats are an auditory illusion: when each ear hears a slightly different frequency through headphones, the brain perceives a third “beat” equal to the difference. That beat frequency (e.g. 10 Hz) is matched to a target brainwave band.
Do binaural beats really work?
For anxiety the evidence is solid — a meta-analysis of 14 studies found a medium reduction (g≈0.45). For sleep and meditation it’s emerging; for complex cognitive performance it’s mixed, and one large study found beats can even impair hard problem-solving. Around 20–40% of people don’t respond at all.
Do binaural beats work without headphones?
No. The effect only exists when each ear receives a different tone, which requires stereo headphones. On speakers the two tones mix in the air and no beat forms. Isochronic and monaural tones work on speakers; binaural does not.
Are binaural beats safe?
For healthy adults at comfortable volumes, generally yes. If you have epilepsy or a seizure disorder, consult a doctor first, and never use them while driving or operating machinery.
What frequency should I use?
Delta (1–4 Hz) for sleep, theta (4–8 Hz) for meditation, alpha (8–13 Hz) for calm and anxiety relief, beta (13–30 Hz) for active focus. Avoid beta when anxious — it can be activating.
Is this binaural beats generator free?
Yes — completely free, with no signup to use it. Everything runs in your browser; an optional email unlocks downloadable MP3s.
References
- Garcia-Argibay et al., 2019 — Meta-analysis of 14 studies — medium reduction in anxiety (Hedges’ g ≈ 0.45), plus memory and pain benefits. The strongest evidence in the field.
- Klichowski et al., 2023 — Large study (~1,000 participants) — binaural beats worsened performance on complex fluid-intelligence tasks versus silence.
- Aparecido-Kanzler et al., 2021 — Systematic review — ~82% of randomised trials found auditory beat stimulation beat the control condition, though quality varied.
- Ingendoh et al., 2023 — Pink and brown noise abolished binaural-beat entrainment on EEG — low-frequency noise masks the beat.
- Lane et al., 1998 — Beta-frequency beats associated with increased anxiety/tension — why we never recommend beta for calm.
- Schwarz & Taylor, 2005 — Monaural beats produced a stronger EEG response than binaural beats (p < 0.001).
- Nigg et al., 2024 — Meta-analysis — zero controlled studies of brown noise for ADHD; the (modest) noise evidence is for white noise.
About this tool
binaural.info exists because most binaural beats sites overpromise. We grade every claim by the strength of the actual research — and we tell you plainly when the evidence is weak, mixed, or absent. The generator is free, runs entirely in your browser, and always will be.
Last updated June 2026