Store.js
localStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood
Fuse
Lightweight fuzzy-search, in JavaScript
Mediaelement
HTML5 <audio> or <video> player with Flash and Silverlight shims that mimics the HTML5 MediaElement API, enabling a consistent UI in all browsers.
Popmotion
A 12kb Javascript motion engine. Use for animation, physics and input tracking.
JSHint
JSHint is a community-driven tool to detect errors in JavaScript code and enforce your team's coding conventions.
Parsley.js
Validate your forms, frontend, without writting a single line of javascript!
Nock
HTTP mocking and expectations library
Pace
Automatically add a progress bar to your site. #hubspot-open-source
Paper.js
The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas. Created by @juerglehni & @jonathanpuckey
Apexcharts.js
📊 Interactive and Modern SVG Charts
Mojs
motion graphics library for the web
RequireJS
A file and module loader for JavaScript
Scroll Reveal.js
Declarative on-scroll reveal animations.
Cytoscape.js
A JavaScript graph library for analysis and visualisation (compatible with CommonJS/Node.js, AMD/Require.js, jQuery 1.4+, Bower, npm, and plain JavaScript)
Stencil
A Web Component compiler for building fast, reusable UI components and Progressive Web Apps 💎 Built by the Ionic Framework team
Skrollr
Stand-alone parallax scrolling library for mobile (Android + iOS) and desktop. No jQuery. Just plain JavaScript (and some love).
Dropzone
Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.