Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.

A collection of common interactive command line user interfaces.

The JavaScript library for modern SVG graphics.

The official Semantic-UI-React integration

This is probably the best web presentation tool so far!

The world's most versatile desktop notifications framework 🌎

Multiple file upload plugin with image previews, drag and drop, progress bars. S3 and Azure support, image scaling, form support, chunking, resume, pause, and tons of other features.

JavaScript library for all kinds of color manipulations

The minimal javascript library to create flowcharts ✨

JavaScript diagramming library for interactive flowcharts, org charts, design tools, planning tools, visual languages.

The ultimate JavaScript string library

Apify SDK — The scalable web crawling and scraping library for JavaScript/Node.js. Enables development of data extraction and web automation jobs (not only) with headless Chrome and Puppeteer.

a [μ] microInteraction library built with CSS Animations and controlled by JavaScript Power

a JavaScript library which is built to easily customize and use the SVG Icons with a blaze.

A library for prototyping realtime hand detection (bounding box), directly in the browser.

The most versatile JavaScript animated typing utility on the planet.

autoNumeric is a standalone library that provides live as-you-type formatting for international numbers and currencies.

Cross platform UI controls for progressive web and hybrid apps (plain JS, jQuery, Angular and React)

Single Page Switching bone(include page manage, events manage) for mobile web APP, Hybrid APP, Phonegap, PPT, Single-Screen PC page...

👻 Tiny React16 like framework with Concurrent.

🖱️ Selection - A simple and lightweight library to realize visual DOM Selections, like on your Desktop. No jQuery. Supports any CSS library, e.g. Bootstrap. Including vertical & horizontal scroll support.

A javascript library for handling currencies

A little library that can be used for bursting particles effects on buttons and other elements

A simple yet powerful tree component for Angular (>=2)

A lightweight JavaScript graphics library with the intuitive API, based on SVG/VML technology.

PKI.js is a pure JavaScript library implementing the formats that are used in PKI applications (signing, encryption, certificate requests, OCSP and TSP requests/responses). It is built on WebCrypto (Web Cryptography API) and requires no plug-ins.