freeaudio.tools
639 Hz Tone
Play or download a pure 639 Hz tone, free.
Your browser. Nothing uploaded.
Start low. High volume tones can hurt your ears and speakers.
Questions
Is this tone generator free?
Yes, 100% free. No sign up, no watermark and no limits.
Does anything get uploaded?
Nothing gets uploaded. The tone is made on your own device, right in your browser.
How do I play a 639 Hz tone?
Press Play. The page starts on 639 Hz with a pure sine wave.
Can I download a 639 Hz tone?
Yes. Pick a length up to 10 minutes and click Export MP3.
What is 639 Hz?
639 Hz is The Solfeggio tone often linked to connection and relationships. The nine Solfeggio tones are 174, 285, 396, 417, 528, 639, 741, 852 and 963 Hz.
No sound on my iPhone?
Turn off silent mode (the switch or Action button on the side), turn up the volume, and press Play again. Older iPhones mute web audio in silent mode.
Learn more about the tone generator
Pure 639 Hz tone
Play a clean 639 Hz sine tone, the Solfeggio tone often linked to connection and relationships, right in your browser, or download it for meditation, sleep and sound baths.
How to download a 639 Hz tone
- Press Play to hear 639 Hz.
- Pick a length from 5 seconds to 10 minutes.
- Click Export MP3.
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