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.
Sleepy Baby - Help your baby sleep with the Sleepy Baby soundboard.
Noizio - Feeling that the noise of the big city is too much for you to bear?
Rain Room - Listen to curated rain recordings to feel relaxed and cosy
zenmix.io - Ambient background sound generator
Shhh Noise - A free sound generator designed to increase focus and relaxation.