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
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75%
Healing Frequencies
The Online Tone Generator allows you to create a constant tone simply by clicking Play or pressing Spacebar. You can adjust the frequency easily by dragging the slider or using arrow keys. For precise adjustments, use Shift, Ctrl, or combinations to increase or decrease the frequency in smaller steps. You can also quickly double or halve the frequency to move between octaves.
You can change the waveform type between Sine, Square, Triangle, and Sawtooth for different tonal characteristics. Multiple tones can be layered by opening several instances of the tone generator in different browser tabs.
Common Uses of the Tone Generator
Instrument Tuning - Quickly and easily 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 potential hearing loss.
Tinnitus Frequency Matching - Accurately match your tinnitus tone and use targeted sound therapy.
Alzheimer’s Research - Some studies suggest that 40 Hz tones may impact Alzheimer’s-related brain activity. Though promising in animals, more research is required in humans. (Disclaimer: This tool is not a medical device.)
Key Features
Generate pure sine tones between 1 Hz to 20,000 Hz — full hearing range.
Select from 4 waveforms: Sine, Square, Triangle, Sawtooth.
Browser-based — no installation required.
Visualization can be turned ON or OFF.
Volume and stereo panning controls.
Supports downloading generated tones.
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 as 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 input field.
Select the waveform shape.
Adjust volume and stereo balance.
Press Play to generate the tone.
Save or share the generated audio if needed.
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.
Available Tools
Multiple Tone Generator
Pitch Shifter
Time Stretcher
Voice Generator
Voice Recorder
Sweep Generator
Instrument Tuning
Subwoofer Testing
Hearing Test
Noise Generator
Binaural Beats
432 Hz Frequency Generator
DTMF Signals
Metronome
Acoustic Theory
Support
If you enjoy using this tone generator, consider supporting us with a small donation. This helps maintain compatibility with modern browsers and ensures ongoing updates.