Sound Therapy for the Modern Mind
A precision frequency generator built for meditation, focus, sleep, and healing — entirely in your browser.
What is HealingSounds?
HealingSounds is an advanced browser-based frequency therapy application. Using the Web Audio API, it generates precise sine, square, sawtooth, and triangle waveforms — from 1 Hz all the way to 22,000 Hz — directly on your device without sending anything to a server.
Whether you're exploring solfeggio frequencies, binaural beats for sleep, or simply need a focus tone — HealingSounds provides professional-grade audio therapy tools accessible to everyone.
Why we built it
Most sound therapy apps either require expensive subscriptions, push ads, or upload your usage data to remote servers. We believed there was a better way — a tool that's fast, private, and genuinely useful. HealingSounds was built from scratch with one principle: everything happens on your device.
What HealingSounds can do
- Frequency Generator — 1 to 22,000 Hz with real-time oscilloscope visualization
- 10 Solfeggio Presets — 174 Hz through 963 Hz, the classical healing frequencies
- Wave Types — Sine wave (pure tone)
- Session Timer — Built-in countdown with auto-stop
- Volume Control — Smooth real-time adjustment
- Session History — Last 8 played frequencies
- Dark & Light Theme — Easy on the eyes in any environment
- PWA Install — Install on your device, works offline
- Binaural Beats — Delta, Theta, Alpha, Beta, Gamma, Mu — true stereo beats for brainwave entrainment
- All Wave Types — Square, Sawtooth, Triangle for richer sound therapy
- 3-Channel Mixer — Play three frequencies simultaneously with individual volume control
- WAV Audio Export — Save your sessions as audio files
- 30+ Solfeggio Presets — Extended frequency library including 40 Hz Gamma, 111 Hz Cell Repair, Earth OM and more
- Unlimited Timer — No session length restrictions
Free vs Pro
| Feature | Free | Pro |
|---|---|---|
| Frequency Generator | ||
| Solfeggio Presets | 10 | 30+ |
| Wave Types | Sine only | All 4 |
| Binaural Beats | — | |
| Frequency Mixer | — | 3 channels |
| WAV Export | — | |
| Session Timer | Up to 30 min | Unlimited |
| PWA / Offline |
Technology
HealingSounds is built with vanilla JavaScript and the Web Audio API — no external audio libraries. The oscilloscope uses the Canvas API for real-time waveform rendering. Pro features use a lightweight PHP backend for account and payment management via PayPal. Your audio is always generated 100% locally.
Our Commitment
- Audio is always generated locally — no server involvement, ever
- We will never sell or share your data
- Pro is a one-time payment — no future subscription switch
- The Free tier will always remain free