# What is Frequency Generator?

FrequencyGenerator.com is a free online tone generator that plays pure healing frequencies right in your browser — no app, no sign-up, no download. Pick a frequency such as 432 Hz, 528 Hz, a Solfeggio tone, or a chakra frequency, then layer it with background noise, binaural beats, and a deep subharmonic tone to build your own soundscape for meditation, focus, relaxation, and sleep.

## The four sound layers

You mix up to four layers at once, each with its own volume:

- **Frequency** — a pure sine tone. Choose from Most Popular (432 Hz, 528 Hz), the nine Solfeggio frequencies (174–963 Hz), seven chakra frequencies (256–480 Hz), and 432 Hz musical scales.
- **Noise** — white, pink, or brown noise to sit gently under the tone.
- **Binaural beats** — Delta (2 Hz), Theta (6 Hz), or Alpha (10 Hz), with the carrier automatically tuned to your frequency. Headphones required.
- **Subharmonic** — a deep sub-bass tone derived from your frequency for a grounding, felt-in-the-body depth.

## Sleep Mode — play all night with the screen locked

Tap **Bake for Sleep** and FrequencyGenerator.com optimizes your mix for long background playback, so your device uses less battery and the mix can keep playing in the background with the screen locked. Your mix and its controls appear right on the lock screen, so you can drift off to it and let it run for hours. Tap **Edit mix** whenever you want to change the sounds.

## How to use it

1. Press **Start Generator**, or tap any frequency to begin.
2. Set the frequency volume, then add noise, binaural beats, or a subharmonic layer.
3. Balance each layer with its own volume slider.
4. For sleep, tap **Bake for Sleep**, press play, and lock your phone.