Easy Noise - A simple Android app to play white noise.
Syrinscape - Immersive, dynamic sound effects and music for tabletop games
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.
A Soft Murmur - Ambient sounds to wash away distraction.
MyNoise - Custom shaped online noise machines. Many Many generic sounds
Rainy Mood - Rainy Mood is the world's most popular rain simulator. Sleep, study, and relax with the sound of rain.