Bideo.js is a javascript library that makes it super easy to add fullscreen background videos.
Plyr is a simple, accessible and customizable HTML5, YouTube and Vimeo media player.
Loud links is a simple tiny Javascript library to add interaction sounds to your website. The library creates HTML5 audio element and uses it to play mp3/ogg audio files which is currently supported in all browsers.
Bootstrap-wysihtml5 is a javascript plugin to create simple, beautiful wysiwyg editors. This plugin is also compatible with Bootstrap3.
jQuery Video Extend is a plugin to extend HTML5 videos as:
APlayer is a beautiful HTML5 music player by using javascript. It has some options to customize.
A tutorial about creating responsive image slideshow by using HTML5, CSS3 and jQuery. It also supports swiping on touch devices. It works on all modern browsers including IE 10+.
Vega is a visualization grammar, a declarative format for creating and saving interactive visualization designs.
With Vega you can describe data visualizations in a JSON format, and generate interactive views using either HTML5 Canvas or SVG.
Watermark is a jQuery plugin to add watermark on images use HTML5 and Javascript.
html5tooltips.js is a light and clean tooltips written in pure javascript with CSS3 animation and no framework dependency.
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. It supports jQuery, MooTools and Prototype.
Paper.js is an open source vector graphics scripting framework that runs on top of the HTML5 Canvas.
It offers a clean Scene Graph / Document Object Model and a lot of powerful functionality to create and work with vector graphics and bezier curves, all neatly wrapped up in a well designed, consistent and clean programming interface.
An enhanced HTML 5 file input for Bootstrap 3.x with file preview for various files, offers multiple selection, and more.
The plugin allows you a simple way to setup an advanced file picker/upload control built to work specially with Bootstrap CSS3 styles. It enhances the file input functionality further, by offering support to preview a wide variety of files i.e. images, text, html, video, audio, flash, and objects.
TabbedContent is a lightweight tabs plugin that uses the HTML5 history API to add your tab navigation to your browser's history. Also it is compatible with Bootstrap.
CircularLoader.js is a jQuery plugin made using HTML5 and javascript to create customizable cicular progress bars with or without percentage values. It can be used to create a progress indicator. It is a fully customizable plugin which works with all browsers compatible with HTML5.