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.
Time 2 - Stay focused and crush procrastination
Noizio - Feeling that the noise of the big city is too much for you to bear?
Progress Bar OSX - This is your life and it's ending ⏳ one minute at a time
MyNoise - Custom shaped online noise machines. Many Many generic sounds
Gone - An ephemeral to-do list