Nightwool

Calm & rhythm · Generated · Premium in the app

528 Hz tone

A pure, steady 528 Hz tone, slightly brighter than 432 Hz. No health claims, just a tone.

Timer

Generated in your browser with the same code as the app, nothing to download. Start with your volume low. Keep this tab open.

About this sound

A single, pure tone at 528 Hz: a smooth, steady hum, a little brighter and higher than 432 Hz.

It is a plain sine wave from an oscillator, generated live in your browser with the app's code. There is no music, no binaural effect and nothing hidden under it.

A pure tone at a fixed pitch can feel louder than it is, so in the app use the volume slider and the Max volume limit in Settings to keep it soft.

How people use it

528 Hz is often sold online as a healing or "love" frequency. There is no good evidence for those claims, and we make no health claims for it. Some people simply like a steady tone for meditation or as a soft layer under other sounds.

A pure tone stands out, so keep it very quiet. Under brown noise or ocean waves it becomes a gentle hum.

Some people play it at the start of a meditation and then switch to a steadier noise for the night.

Questions

Is 528 Hz a healing frequency?

There is no reliable evidence that it heals or repairs anything. It is a tone, and some people find it pleasant.

Should I choose 432 Hz or 528 Hz?

Choose by ear. 528 Hz is higher and brighter, 432 Hz is lower and warmer.

Is this a binaural beat?

No. Both ears hear the same 528 Hz sine wave. Binaural beats play slightly different tones in each ear; this is one plain tone.

Mix it with

Get 528 hz on your phone

Nightwool is coming to iPhone and Android. One e-mail when it launches, then we delete the list.

I'd use it on

We'll write when Nightwool is out and, now and then, when there's a new article. You confirm by e-mail and can unsubscribe in one click. How we handle it.

Prefer plain e-mail? Write to support@nightwool.com.

All sounds