freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

An enterprise-class UI design language and React UI library

A terminal for a more modern age

The Progressive Web Framework.

The communications platform that puts data protection first.

🐠 Babel is a compiler for writing next generation JavaScript.

A JavaScript library to position floating elements and create interactions for them.

The fast, flexible, and elegant library for parsing and manipulating HTML and XML.

A beautiful replacement for JavaScript's "alert"

Full-sized drag & drop event calendar in JavaScript

An emoji guide for your commit messages. 😜

Essential UI blocks for building mobile web apps.

Audio waveform player

Capture website screenshots

noUiSlider is a lightweight, ARIA-accessible JavaScript range slider with multi-touch and keyboard support. It is fully GPU animated: no reflows, so it is fast; even on older devices. It also fits …

Tourist Guide into your React Components

Customizable, Extendable, and High-Performance JavaScript-Based Scrollbar Solution.

Bootstrap components build with Typescript

VanillaJS sortable lists and grids using native HTML5 drag and drop API.

Create icon fonts from several SVG icons

Little utility to detect if elements are currently within the viewport 🔧

ECMAScript parsing infrastructure for multipurpose analysis

Minimalistic portfolio/photography site with masonry grid, page transitions and big images. Themeable with Theme UI. Includes Light/Dark mode.

Image-heavy photography portfolio with colorful accents & customizable pages. Includes adaptive image grids powered by CSS grid and automatic image integration into projects.