Stimulus
A modest JavaScript framework for the HTML you already have
LeapJS
Javascript library for the Leap motion controller
Speak.js
Text-to-Speech in JavaScript using eSpeak
Tinycon
A small library for manipulating the favicon, in particular adding alert bubbles and changing images.
Gridifier
Async Responsive Html Grids
Polyglot.js
Give your JavaScript the ability to speak many languages.
Imager.js
Responsive images while we wait for srcset to finish cooking
Browser Sync
Keep multiple browsers & devices in sync when building websites. http://browsersync.io
Basket.js
A script and resource loader for caching & loading files with localStorage
Jsblocks
Better MV-ish Framework
Broccoli
Browser compilation library – a build tool for applications that run in the browser
Highland
High-level streams library for Node.js and the browser
Apexcharts.js
📊 Interactive and Modern SVG Charts
Oimo.js
Lightweight 3d physics engine for javascript
Dynamics.js
Javascript library to create physics-based CSS animations
Snabbt.js
Fast animations with javascript and CSS transforms
Alasql
AlaSQL.js - JavaScript SQL database for browser and Node.js. Handles both traditional relational tables and nested JSON data (NoSQL). Export, store, and import data from localStorage, IndexedDB, or Excel.