Blockrain.js is a tetris game in HTML5 for jQuery with autoplay. It's responsive and you can customize colors.
A tutorial about how to create a gorgeous, interactive animated pie chart by using HTML5 canvas element, CSS3 and jQuery.
ClassyCountdown is a jQuery plugin that allows you to easily create clean circular countdowns. It is fully customizable and includes 12 themes, which can be modified and it uses HTML5 canvas for rendering the circles.
A lightweight jQuery WYSIWYG text editor based on HTML5 technology. Cross browser, with mobile support, high performance and Retina Ready flat design.
It's free to use for personal and non-profit projects.
Particleground is a jQuery plugin for snazzy background particle systems. Particleground includes an optional parallax effect controlled by the mouse on desktop devices and gyroscope on mobile devices.
It works in any browser that supports HTML5 canvas.
Retain your scroll position between pages using an iframe. Especially helpful for infinite scrolling views.
scrollFrame will hijack the user's click for elements that match the query selector you pass in and instead of reloading the page it will append a modal-like iframe that sits on top of your viewport and points to the element's href. It then uses HTML5 history APIs to make the back-button function as expected.
Chart.js is a simple, clean and engaging charts for designers and developers.
gridscrolling.js is a jQuery plugin that layouts HTML5 articles, positioning sections and asides in a grid, allowing easy navigation with cursor keys.
CoverVid is a jQuery plugin to make your HTML5 video behave like a background cover image. It's so easy to use.
waterpipe.js is a jQuery plugin for smoky backgrounds generation (HTML5 Canvas).
NumBox jQuery Plugin helps ensure that a numeric keyboard will pop-up on mobile devices when a number is entered. It offers real-time validation as you type plus display formatting for mobile devices and desktop browsers, is designed for HTML5's
input type="number" elements, and provides a number of customization options.