Noizio is an app that will drown out the noise of the street and allow you to concentrate on the work at hand, increasing your productivity. On the other hand, it can also set the mood for a romantic evening or lull you to sleep, ensuring that you will dream soundly all night long. An ambient sound equalizer app for creating a mixture of ambient sounds available for macOS.
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.
Aura Soundscape Player - Modern tools for modern applications.
Brain.fm - Music designed for the brain to enhance focus, relaxation, meditation, naps and sleep within 10 - 15 minutes of use.
Defonic - Create a unique sound environment at home or in the office