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.

Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.

Noizio - Feeling that the noise of the big city is too much for you to bear?

Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.

zenmix.io - Ambient background sound generator

Pomodone - Pomodone is the easiest way to track your workflow using Pomodoro technique, on top of your current task management service.