Free Online Frequency Generator for Sound Healing, Meditation & Focus
Welcome to FrequencyZen – the best online frequency generator for sound healing, Solfeggio
frequencies, and binaural beats. Generate pure tones from 1Hz to 22,000Hz for meditation, focus, energy
healing, and relaxation. Discover the power of sound frequency healing with our modern and easy-to-use web
app.
440Hz
0%100%
75%
✨ Healing Frequencies
Click "Tune In" to instantly play any healing frequency
The Online Tone Generator allows you to create a constant tone simply by clicking Play. You can adjust the
frequency easily by dragging the slider. For precise adjustments, use the + / – buttons. Multiple tones can
be layered by opening several instances in different browser tabs.
You can change the waveform type between Sine, Square, Triangle, and Sawtooth for different tonal
characteristics, and adjust stereo panning for left, right, or both channels.
Common Uses of the Tone Generator
Instrument Tuning — Quickly tune your instruments to perfect pitch.
Science Experiments — Explore resonant frequencies in objects like glass, metals, and more.
Audio Equipment Testing — Evaluate the frequency response of speakers and subwoofers.
Hearing Test — Find out the highest frequency you can hear or test for hearing loss.
Tinnitus Frequency Matching — Accurately match your tinnitus tone and use targeted sound therapy.
Alzheimer's Research — Some studies suggest 40 Hz tones may impact Alzheimer's-related brain activity.
(Disclaimer: This tool is not a medical device.)
Key Features
Generate pure sine tones between 1 Hz to 22,000 Hz — full hearing range.
Select from 4 waveforms: Sine, Square, Triangle, Sawtooth.
Browser-based — no installation required.
Real-time waveform visualization on canvas.
Volume and stereo panning controls.
Works across all modern browsers: Chrome, Firefox, Opera, Edge.
Special Focus: 432 Hz Frequency
Many users prefer the sound of 432 Hz for its calming, natural resonance compared to 440 Hz tuning. You can
listen to 432 Hz online and decide for yourself.
How to Use
Lower your volume to protect your ears.
Set your desired frequency using the slider or +/– buttons.
Select the waveform shape.
Adjust volume and stereo balance.
Press Play to generate the tone.
Hearing Range
Human hearing typically ranges from 20 Hz to 20,000 Hz. If certain frequencies are inaudible, it may indicate
hearing limitations or device output constraints.
Support
If you enjoy using this tone generator, consider supporting us. This helps maintain compatibility with modern
browsers and ensures ongoing updates.