The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

JavaScript Style Guide

JavaScript 3D Library.

24 Lessons, 12 Weeks, Get Started as a Web Developer

web development for the rest of us

The iconic SVG, font, and CSS toolkit

The HTML Presentation Framework

Simple HTML5 Charts using the <canvas> tag

A modern JavaScript utility library delivering modularity, performance, & extras.

PDF Reader in JavaScript

Parse, validate, manipulate, and display dates in javascript.

⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API

🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦

Most modern mobile touch slider with hardware accelerated transitions

Materialize, a CSS Framework based on Material Design

Video.js - open source HTML5 video player

It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com.

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

Reorderable drag-and-drop lists for modern browsers and touch devices. No jQuery or framework required.

A lightweight JavaScript library for creating particles

Automated auditing, performance metrics, and best practices for the web.

the last carousel you'll ever need

Ace (Ajax.org Cloud9 Editor)

For slim progress bars like on YouTube, Medium, etc

Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.

Simply beautiful open-source icons

A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

👌 Drag and drop so simple it hurts

In-browser Markdown editor