Mate is a tag-based, event-driven Flex framework.

The Maven Flex Plugin (mvnflexplugin) is a Maven 2 plugin designed to enable continuous integration for Adobe Flex libraries and applications, and to benefit of the power of Apache Maven.

Merapi is a bridge between applications written in Java and those running in and created for Adobe AIR™ (Adobe Integrated Runtime™). Merapi has been designed to run on a user's machine, along with an Adobe AIR™application and providea direct bridge between the Adobe AIR™ framework and Java, exposing the power and overall calabilities of the user's operating system, including 3rd party hardware devices.
With a light weight and straightforward API, developers can leverage the OS by writing Java companion applications for their AIR™ applications. Java programs treat Merapi as a bridge to the running Adobe AIR™ application and vice-versa. Developers can build their Flex, Flash and AJAX applications for Adobe AIR™, and use Merapi to make them do things that AIR just can't do by itself.

Model-Glue: Flex brings implicit invocation, Model-View-Controller design, and cleaner, less repetitive integration with backend services to Flex 2.0 and AIR applications. It shuns repetitive, boilerplate code in favor of helper classes and expressive APIs.

Parsley is an application framework for Flex/Flash/AIR applications written in AS3. It contains the following modules:
* IOC Container (Configuration and Dependency Injection). This is the largest Parsley module. Inspired by the Spring Framework it brings the concept of an IOC (Inversion of Control) container to ActionScript.
* MVC Framework.
The MVC (Model View Controller) framework helps decouple the view layer from other parts of the application.
* Localization. Parsley comes with a module for runtime localization. While the Flex 3 SDK will offer that too, Parsley can be used with or without Flex.

Pimento is a framework for integrating data management into Rich Internet Applications. It integrates Java web applications built with JPA/Hibernate and Spring with Flex, Flash and AIR clients and can be deployed in any servlet container or Java EE application server.

PureMVC is a lightweight framework for creating applications in ActionScript 3, based upon the classic Model-View-Controller design meta-pattern. This free, open source framework does not depend on any Flash, Flex or Apollo classes, and is therefore suitable for architecting applications on any platform running AS3.

ActionScript 3 is a strongly-typed, fully object-oriented language based on the same standard as JavaScript (ECMAScript), though AS3 implements a more current edition (Edition 4). It is the internal scripting language for Adobe Flash, Flex, and Apollo, and is currently being integrated into the FireFox browser by the Mozilla Foundation as the next generation of JavaScript. From the beginning it was known that due to its pattern-based nature, nearly any OOP language could be targeted for implementation. Currently there are ports to AS2, ColdFusion, C#, Java, and PHP in development.

Qtest is an enterprise-class automated load testing and monitoring solution. It offers a high capacity for load simulation, extensive monitoring capability and is a new benchmark in affordability and ease of use. QTest supports all Web, Web Service, J2EE, .Net, ASP, AJAX, CGI, and Mainframe Portal environments and, in particular, complex Web applications like Siebel, SAP, and Epiphany.

RestfulX is a framework that brings the design principles and productivity of Rails to Adobe Flex and AIR development and makes integration with RESTful Web Services as simple as possible. If you want to use Ruby on Rails, Merb, Sinatra, CouchDB or Google App Engine and you want a UI that puts the word Rich into Rich Internet Applications give RestfulX a spin.

RubyAMF is an open source flash remoting gateway for Ruby on Rails. RubyAMF is a plugin for Ruby on Rails that plugs directly into your controllers with render :amf.