Shepherd is a javascript library for guiding users through your app. It uses Tether, another open source library, to position all of its steps.
Product Tour is a responsive tour snippet, with a step-by-step guide to help users understand how to use your website.
SiteHelp.js is a helpful Javascript plugin made using jQuery to provide interactive site help. It helps users by navigating them to the important sections or html elements of a website and provide some help guidelines which they could have missed otherwise. It simply creates a virtual tour of the website.
Bootstro.js is a tiny javascript library using Bootstrap's popover to help guide your users around. Show your users a guided tour of what is what on a page.
Bootstrap Tour is a quick and easy way to build your product tours with Twitter Bootstrap Popovers. It's easy to use and has many options to customize.
Trip.js is a jQuery plugin that can help you customize a tutorial trip easily with more flexibilities.
jQuery TourBus is a jQuery tour/walkthrough plugin. It takes more of a toolkit approach than some of the alternatives that try to have focusing elements, auto-progress with timers and indicators and etc.
Chardin.js is a jQuery plugin that creates a simple overlay to display instructions on existent elements. It is inspired by the recent Gmail new composer tour.
Single.JS is a jQuery plugin that make it easy to create single-page websites to portfolios, presentations and more.
Single.JS offers beautiful animations to transition sections and resizes automatically the images.
Joyride is an easy to configure jQuery site tour wizard. Joyride is extremely flexible and lets you take control of how people interact with your tour. It's absolutely free to use.