Remark
A simple, in-browser, markdown-driven slideshow tool.
Fuse
Lightweight fuzzy-search, in JavaScript
Typed.js
A jQuery typing animation script.
Cropperjs
JavaScript image cropper.
Peerjs
Peer-to-peer data in the browser
Paper.js
The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas. Created by @juerglehni & @jonathanpuckey
Sinon.js
Test spies, stubs and mocks for JavaScript.
Tfjs Core
WebGL-accelerated ML // linear algebra // automatic differentiation for JavaScript.
Store.js
localStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood
Mediaelement
HTML5 <audio> or <video> player with Flash and Silverlight shims that mimics the HTML5 MediaElement API, enabling a consistent UI in all browsers.
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!
Testcafe
A Node.js tool to automate end-to-end web testing.
RequireJS
A file and module loader for JavaScript
Popmotion
A 12kb Javascript motion engine. Use for animation, physics and input tracking.
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).