The goal of Substance is to provide a configurable and customizable production-quality Java look and feel library for Swing applications.

UFaceKit UI abstraction library which emphasizes on the MVP (ModelViewPresenter)-Pattern instead of the more common MVC (e.g. implemented by Swing). UFaceKit is build around the Eclipse Databinding Framework which is providing the foundation for the afore mentionned MVP-Pattern.

The Fluent.NET library introduces extension methods to make .NET code easier to read and more fluid to write.

Unitils is an open source library aimed at making unit testing easy and maintainable. Unitils builds further on existing libraries like dbunit and integrates with JUnit and TestNG. Unitils provides general asserion utilities, support for database testing, support for testing with mock objects and offers integration with Spring , Hibernate and the Java Persistence API (JPA). It has been designed to offer these services to unit tests in a very configurable and loosely coupled way. As a result, services can be added and extended very easily.

Ra-Ajax is a no-JavaScript Ajax library for ASP.NET.

Bitumen framework is a collection of lightweight libraries to develop web applications in Java / Clojure, and other JVM languages.

Wu.js is a library for lazy, functional programming in Javascript. Works great in the browser, and also with CommonJS

Hades is a utility library to work with Data Access Objects implemented with Spring and JPA. The main goal is to ease the development and operation of a data access layer in applications.

Ratchet collects errors from your app, categorizes them, notifies you in real-time, and helps you understand and debug them. Install the plugin in your code, and errors will be automatically posted to Ratchet. Log in to ratchet.io to see your dashboard showing the most important issues, and drill down to specific errors to find the cause.

The Painless Test Library provides a simple test structure that is easy to learn, use and debug. Tests can be run with a standard node command node test.js allowing you to use all the existing node tools. Tests are really fast. In some cases 10-20x faster than other libraries. Out of the box tests can use ES6/Babel, Promises, Async/Await, Generators, Observables, Callbacks and more. It comes bundled with assertions and mocking (Chai and Sinon)