Scrollama is a modern & lightweight JavaScript library for scrollytelling using IntersectionObserver in favor of scroll events. The goal of this library is to provide a simple interface for creating scroll-driven interactives

GitHub-inspired simple and modern charts for the web with zero dependencies.

Bottery is a syntax, editor, and simulator for prototyping generative contextual conversations modeled as finite state machines.

In-browser structured text editing component. A toolkit for building rich-text editors on the web.

Draggable is a modular drag & drop library, allowing you to start small and build up with the features you need. At its most basic, Draggable gives you drag & drop functionality, fast DOM reordering, accessible markup, and a bundle of events to grab on to.

Gibber is a live coding environment for the web browser, using the Gibberish.js audio engine, the CodeMirror code editor library and wrapping Three.js for 3d graphics and shader support. Version 2 of Gibber features a much more efficient audio engine, some interesting mapping abstractions and a server/database backend for publishing and browsing files and collaboratively live coding.

flatpickr is a lightweight and powerful datetime picker.
Lean, UX-driven, and extensible, yet it doesn’t depend on any libraries. There’s minimal UI but many themes. Rich, exposed APIs and event system make it suitable for any environment.
This “lean” philosophy translates to less size and better performance, with a bonus of not having to load 8 libraries for a calendar.

Jest is used by Facebook to test all JavaScript code including React applications. Complete and easy to set-up JavaScript testing solution. Works out of the box for any React project. Fast interactive watch mode runs only test files related to changed files and is optimized to give signal quickly. Capture snapshots of React trees or other serializable values to simplify testing and to analyze how state changes over time.

Client-Side Database for Browsers, NodeJS, electron, cordova, react-native and every other javascript-runtime

Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.

This command line interface enables you to package your Node.js project into an executable that can be run even on devices without Node.js installed.

Shareable JavaScript Benchmarking

• Built-in ES2015 support, powered by Babel
• Statistically significant benchmarks, powered by Benchmark.js

Prepack is a tool that optimizes JavaScript source code: Computations that can be done at compile-time instead of run-time get eliminated. Prepack replaces the global code of a JavaScript bundle with equivalent code that is a simple sequence of assignments. This gets rid of most intermediate computations and object allocations.

Slate is a completely customizable framework for building rich text editors.

Slate lets you build rich, intuitive editors like those in Medium, Dropbox Paper or Canvas—which are becoming table stakes for applications on the web—without your codebase getting mired in complexity.

Use webtask for …
Serverless Applications

Run server-side code for your JavaScript and native applications. Just worry about your code.
Programmable Webhooks

Run code on each Stripe Payment, a GitHub Push, or any webhook, without setting up servers.
Multi Tenant Sandbox

Allow your customers to extend your product using Node.js code instead of creating your own DSL.

Botpress is an open-source bot creation tool written in Javascript. It is powered by a rich set of open-source modules built by the community. We like to say that Botpress is like the Wordpress of Chatbots; anyone can create and reuse other people's modules.

Automatic and enhanced Google Analytics tracking for common user interactions on the web.

RAW is an open web tool to create custom vector-based visualizations on top of the amazing d3.js library.

Primarily conceived as a tool for designers and vis geeks, RAW aims at providing a missing link between spreadsheet applications (e.g. Microsoft Excel, Apple Numbers, Google Docs, OpenRefine, …) and vector graphics editors (e.g. Adobe Illustrator, Inkscape, …).

RAW works with tabular data (e.g. spreadhseets and comma-separated values) as well as with copied-and-pasted texts from other applications (e.g. Microsoft Excel, TextWrangler, TextEdit, …). Based on the SVG format, visualizations can be easily edited with vector graphics applications for further refinements, or directly embedded into web pages.

Knowing the need of working with sensitive information, the data uploaded to RAW is processed only by the web browser: no server-side operations or storages are performed and no one will see, touch or copy your data!

A toolkit for React, Preact & Inferno apps, React libraries and other npm modules for the web, with no configuration (until you need it)

Intern is a complete test system for JavaScript designed to help you write and run consistent, high-quality test cases for your JavaScript libraries and applications. It can be used to test any JavaScript code. It can even be used to test non-JavaScript Web and mobile apps, and to run tests written for other test systems.