Moodwill - Create and listen for free to your perfect nature sounds environment with music to help you concentrate, relax, sleep and overall feel better.

Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.

Defonic - Create a unique sound environment at home or in the office

zenmix.io - Ambient background sound generator

GitAmp - GitAmp is an open source project that plays a sound each time an event takes place on GitHub.

Studiowave - Chillout tunes and inspiration