Experimenting with window.onerror, trying to make JavaScript debugging easy.
What does it do?

Provides JavaScript error details in a readable format. You can log these errors remotely by enabling remoteLogging. After enabling, logerr will send a post request to the desired action/url with exception details along with custom parameters (if provided using additionalParams).

Redux is a predictable state container for JavaScript apps.

It helps you write applications that behave consistently, run in different environments (client, server, and native), and are easy to test. On top of that, it provides a great developer experience, such as live code editing combined with a time traveling debugger.

You can use Redux together with React, or with any other view library.

The Monaco Editor is the code editor that powers VS Code.
Rich IntelliSense and Validation for TypeScript, JavaScript, CSS, LESS.
Basic Syntax Colorization for HTML, XML, PHP, C#, C++, Razor, Markdown, Diff, Java, VB, CoffeeScript, Handlebars, Batch, Jade, F#, Lua, Powershell, Python, SASS, R, Objective-C.

Shumway is an HTML5 technology experiment that explores building a faithful and efficient renderer for the SWF file format without native code assistance.

Algolia Places provides a fast, distributed and easy way to use an address search autocomplete JavaScript library on your website. It has been designed to improve the user experience of your HTML forms.

It harnesses OpenStreetMap’s impressive open source database of worldwide places.

The Vanilla Javascript Repository. A searchable repository of dependency-free JavaScript libraries. Over 100 projects and growing.

A collection of accessible, modern front-end components.

Frend components are modest and dependency-free. They are built with web standards as a priority and aim to avoid assumptions about tooling or environment. Care has been taken to make sure each component is compliant, keyboard navigable and properly interpreted by assistive technologies.

An HTML5 Presentation Editor. A GUI / Authoring Tool for ImpressJS and Bespoke.js
Source at https://github.com/tantaman/Strut

A simple, accessible HTML5 media player

RethinkDB Horizon is an open-source developer platform for building realtime, scalable web apps. It is built on top of RethinkDB, and allows app developers to get started with building modern, engaging apps without writing any backend code.

Horizon consists of three components:

Horizon server: a middleware server that connects to/is built on top of RethinkDB, and exposes a simple API/protocol to front-end applications.
Horizon client: a JavaScript client library that wraps Horizon server’s protocol in a convenient API for front-end developers.
Horizon CLI: a command line tool, hz, aiding in scaffolding, development, and deployment.

A compact, cross-browser solution for using the JavaScript Notifications API

nlp_compromise does NLP in the browser. It's a handy, and not overly-fancy tool for understanding, changing, and playing with english. We've also got a modest, though ambitious plugin ecosystem.

Vue.js is a library for building interactive web interfaces. It provides data-reactive components with a simple and flexible API. Core features include:

Dead simple, unobtrusive reactivity using plain JavaScript objects.
Component-oriented development style with tooling support
Lean and extensible core
Flexible transition effect system
Fast without the need for complex optimization

Open source HTML5 hybrid app framework for PhoneGap & Cordova
Mobile-optimized HTML5, CSS and JavaScript with Web components
Responsive layout, Material and Flat design

Snyk helps you use open source and stay secure.
Continuously find & fix vulnerabilities in your dependencies.

Isolate your React UI Component development from the main app. Now you can develop and design React UI components without running your app. You just load your UI components into the React Storybook and start developing them.
This functionality allows you to develop UI components rapidly without worrying about the app. It will improve your team’s collaboration and feedback loop.

The global fetch function is an easier way to make web requests and handle responses than using an XMLHttpRequest. This polyfill is written as closely as possible to the standard Fetch specification at https://fetch.spec.whatwg.org.

Ace = JavaScript + Native UI + iOS + Android
for Apache Cordova

Add native power to your shared JavaScript codebase
Works with Ionic, PhoneGap, and all Cordova-based projects

The pluggable linting utility for JavaScript and JSX

Library to detect when DOM elements become visible and disappear on scroll.