Pentadactyl is described as 'Free browser add-on for Firefox, designed to make browsing more efficient and especially more keyboard accessible. Largely inspired by the Vim text editor, the appearance and finger feel of Pentadactyl should be familiar to Vim users' and is an app in the web browsers category. There are more than 10 alternatives to Pentadactyl for a variety of platforms, including Mac, Windows, Linux, Mozilla Firefox and Google Chrome apps. The best Pentadactyl alternative is Vimium, which is both free and Open Source. Other great apps like Pentadactyl are Vieb, Shortcat, hunt-n-peck and Vimperator.