RelaxEnd

Sound library

Sounds library

Every sound on RelaxEnd in one list. Open a generator to play it, shape it with the equalizer, and set a sleep timer. Audio is made in your browser.

All colors in the noise lab

Noise generators

Seven noise colors synthesized in the tab. People use them for sleep, focus, and masking. Nature sounds come later.

White noise

Bright, even static. Masks voices and sudden sounds.

Play White noise

Pink noise

Softer, like steady rain. Easy for long focus sessions.

Play Pink noise

Brown noise

Deep rumble. The usual pick for sleep and traffic.

Play Brown noise

Green noise

Mid-focused, like a distant forest. Natural and even.

Play Green noise

Grey noise

Tuned to human hearing so every band feels equally loud.

Play Grey noise

Blue noise

Bright airy hiss. Helps cover high-frequency noise.

Play Blue noise

Violet noise

Thin treble fizz. For high ringing or sharp hiss.

Play Violet noise

Sound library FAQ

What is in the library, what is free, and how playback works.

What sounds are in the library?
Seven synthesized noise colors: white, pink, brown, green, grey, blue, and violet. Nature and rain categories are not live yet.
Are the sounds free?
Yes. No sign-up, account, or subscription. Play in the browser on desktop or phone.
How do I play and customize a sound?
Open any card to its player. There you start playback, pick presets, use a 10-band equalizer, and set a sleep timer.
Are these looped files or live synthesis?
Live synthesis with the Web Audio API. No loop seams, no repeating sample, no large downloads.
Can I compare all noise colors in one place?
Yes. The noise generator lab lets you switch or layer the seven spectra in one player.