Add to Chrome 
Add to EdgeReal-time Binaural Beats
Dial in an exact target frequency from 0.5 Hz Delta sleep waves up to 40 Hz Gamma hyper-focus — synchronized live under any audio source, down to the exact Hertz.
Live entrainment 0.5–40 Hz range
For ADHD brains, developers & night owls
Mute the chaos. Own your flow state.
Why choose between a monotone focus drone and your favorite music? Nuro Pro injects customizable, clinical-grade binaural beats beneath your own tracks and ambient noise — ultimate auditory soundproofing, right in your browser sidebar.
🎧 Requires headphones ⚡ Bypasses executive friction ❌ Zero audio tracking or data selling
Nuro ProFlow State
🚀 Deep FocusBeta
The Toolkit
Everything you need to hack your auditory environment.
Not a basic soundboard — an advanced cognitive optimization workstation built for your browser sidebar.
Ambient Noise
Layer white, pink, or brown noise under any track, or reach for natural outdoor ambience to mask household and coffee-shop chaos without fighting your music for attention.
White Pink Brown Nature
Playlist Support
Drag in whole personal playlists — MP3, WAV, or OGG — and let frequencies lock in underneath while your own tracks keep playing on top.
Visualizer
Live frequency-reactive visuals mapped to your actual audio output, so you can see your session breathing in real time.
Studio EQ
Shape the final blend with five-band control — Hip-Hop bass, classical mid-range clarity, or a flat, loudness-normalized master curve.
Session Timer
Configure automated shutoffs from a quick 5-minute Pomodoro sprint to a full 12-hour overnight run.
Up to 12h
Themes
Six aesthetic palettes ship free — from neon-dark focus mode to a soft daylight look — swap instantly with one click.
Keyboard Shortcuts
Global shortcuts for play, pause, preset swap, and volume — control your whole session without touching the sidebar.
Space ⌥⇧D →
Privacy First
No accounts, no analytics SDKs, no third-party trackers — your session data stays on your device, full stop.
- ✓ No accounts required
- ✓ Zero third-party trackers
Works Offline
Local files, presets, and timers keep running with zero connection — perfect for flights, cabins, or spotty office Wi-Fi.
Works with zero signal
Lightweight
A featherweight install that starts instantly and idles quietly — no bloat, no battery drain, no fan spin-up.
<3 MB install size
Unlimited Playlists
Pro unlocks unlimited bulk playlist loading — no per-playlist caps, no storage upsells, no "upgrade to add more" walls.
∞ playlists, zero caps
The Engine
A live frequency graph, not a static loop.
Every session renders a real-time waveform and frequency graph so you can see exactly where your brain is being guided — across five distinct bands.
Theta 4–8 Hz Creativity
Alpha 8–12 Hz Calm clarity
Beta 12–30 Hz Deep focus
Gamma 30–40 Hz Hyper-processing
NEURAL LOCK SCALE (Hz) ● ENTRAINMENT ACTIVE
Standard drifting Headphones latched Active flow state
🧠 The Brainwave Science
How binaural beats hotwire your cortex.
Through stereo headphones, Nuro Pro sends two subtly different tones into each ear — say, 300 Hz left, 315 Hz right. Your brainstem can't resolve two separate notes, so it fabricates a third, rhythmic phantom beat internally — in this case 15 Hz. Brainwaves then naturally drift to sync with that rhythm, a process called brainwave entrainment.
The effect was first documented by physicist Heinrich Wilhelm Dove in 1839, and it's remained one of the most widely studied tools in consumer auditory neuroscience since Gerald Oster's 1973 research popularized it. The underlying mechanism — the brain's auditory cortex tracking a phase difference between two ears — is well characterized; what varies is how consistently a given listener responds to it.
An under-stimulated ADHD cortex tends to over-produce sluggish Theta waves during waking hours — the source of that painful mental block before a boring task. Nuro Pro introduces steady background micro-stimulation to help stabilize that cycle.
Nuro Pro generates both tones live with the Web Audio API's dual-oscillator engine and phase-locks them beneath whatever you're already playing — there's no pre-rendered MP3 loop underneath. Nudge the target frequency in 0.1 Hz steps, or jump straight to a calibrated preset built around a specific brainwave band.
Theta 4–8 Hz
Daydreaming and free association. Powers the Creativity preset for open-ended brainstorming.
Alpha 8–12 Hz
Relaxed, wakeful calm. Anchors the Flow State and anxiety-easing presets.
Beta 12–30 Hz
Active, analytical focus. The base of Nuro Pro's flagship Deep Focus preset.
Gamma 30–40 Hz
Peak cognitive processing. Reserved for short Cognition hyper-focus sprints.
Questions
Frequently asked questions.
Stop procrastinating.
Get your task done.
Join developers, designers, students, and night owls using Nuro Pro to shield distractions and hit deep execution.
Free install for Chrome & Edge. See Pro pricing →