ajaxify8.2.9Ajaxify your site out of the box, instantly
angular-smooth-scrollbar7.2.0An angular module that allows you customize smooth scrollbars
benchmark2.1.4A benchmarking library that supports high-resolution timers & returns statistically significant results.
blazy1.8.2A lightweight pure JavaScript script for lazy loading and multi-serving images.
bluebird3.7.2Full featured Promises/A+ implementation with exceptionally good performance
html-gl0.3.1Get as many FPS as you need by rendering HTML/CSS in WebGL
jquery.lazy1.7.11Lazy is a fast, feature-rich and lightweight delayed content loading plugin for jQuery. It's designed to speed up page loading times and decrease traffic to your users by only loading the content in view.
jquery.lazyloadxt1.1.0Lazy Load XT is mobile-oriented, fast and extensible jQuery plugin for lazy loading of images, videos and other media with built-in support of jQueryMobile framework. It improves performance of website by loading visible media elements only, and elements below the fold are loaded after page scroll. The plugin has many options, supports callbacks and special lazy events, that allows to have different loading effects (e.g. fade in and spinner effects). Examples of plugin and its addons include ajax, background images, infinite scroll, horizontal scroll, iframe-based widgets (YouTube, Vimeo, Google Maps Engine Lite, Facebook recommend button, Google+ profile), html5 video, responsive images with retina support (srcset and picture polyfills), social widgets (embedded tweet, Twitter share button, Google Plus badge and share button, Facebook like and recommend buttons, Facebook post comments), load all images before print, etc. Tested in IE 6-11, Chrome 1-31, Firefox 1.5-27.0, Safari 3-7, Opera 10.6-18.0, iOS 5-7, Android 2.3-4.4, and WP8. Requires jQuery 1.7+, Zepto 1.0+, or DOMtastic 0.7.2+.
justgage1.6.1JustGage is a handy JavaScript plugin for generating and animating nice & clean gauges. It is based on Raphaël library for vector drawing, so it’s completely resolution independent and self-adjusting.
lazy.js0.5.1Like Underscore, but lazier
lazysizes5.3.2High performance (jankfree) lazy loader for images (including responsive images), iframes and scripts (widgets).
lozad.js1.16.0A light-weight JS library to lazy load any HTML element such as images, ads, videos etc.
pegasus0.3.5Load data while still loading other scripts, works with jQuery, Backbone, Angular...
perfbar0.2.1Tracking performance metrics never been easier
Repaintless.css1.4.0Repaintless is a library of CSS animations, which don't cause costly repaints and recalculations in our browser. Animations are smooth and simple.
smooth-scrollbar8.8.4Customize scrollbar in modern browsers with smooth scrolling experience.
snabbdom0.7.4A virtual DOM library with focus on simplicity, modularity, powerful features and performance.
tachyons4.11.1Performant, mobile-first, and 100% responsive modular css framework.
topcoat0.8.0CSS for clean and fast web apps
usertiming0.1.7W3C UserTiming polyfill
vanilla-lazyload17.8.3A fast, lightweight script to load images as they enter the viewport. SEO friendly, it supports responsive images (both srcset + sizes and picture) and progressive JPEG
instant.page5.2.0Make your site’s pages instant in 1 minute and improve your conversion rate by 1%
quicklink2.3.0Faster subsequent page-loads by prefetching in-viewport links during idle time
chillout5.0.0Reduce CPU usage by non-blocking async loop and psychologically speed up in JavaScript.
hyperHtml2.34.2A Fast & Light Virtual DOM Alternative
medium-zoom1.0.8A JavaScript library for zooming images like Medium
flying-pages2.1.2Load inner pages instantly, intelligently!