Stay Focused
More suitable with Google Chrome, this service enables you ensure you do not waste precious time on updating Facebook status or chatting with people.
SiteCop
SiteCop is a website timer and blocker that protects you from time-wasting websites and includes a Pomodoro option.
BlockSite
BlockSite is an extension, which automagically blocks websites of your choice.
Pomofocus
A simple and customizable pomodoro timer for the web.
Domain Blocker
Fast and memory efficient content blocking Chrome extension – helps you hide ads, avoid tracking…
Block Site Extension
This simple app lets you block websites to increase your productivity.
Online Alarm Clock
The world’s original online alarm clock, established in 2006.