Apache Flex SDK is the open-source software development kit maintained by the Apache Software Foundation for building applications using Adobe’s Flex framework—primarily targeting Flash runtime and AIR for rich internet applications. The Apache Flex SDK defaults to using the Adobe Flash Player 11.1. The SDK can be used with Flash Player versions 10.2 and up. The Apache Flex SDK uses third-party code that will be downloaded as part of the build. In addition, you can choose to download optional third-party code if you would like to take advantage of the features offered, and you agree to the license terms.

Features

  • MXML-based UI component framework
  • ActionScript 3 code compilation support
  • Compiler and build tools for Flash/AIR applications
  • Theming and layout capabilities
  • Robust data binding mechanisms
  • Extensive UI component library

Project Samples

Project Activity

See All Activity >

Categories

Frameworks

License

Apache License V2.0

Follow Apache Flex SDK

Apache Flex SDK Web Site

Other Useful Business Software
Gen AI apps are built with MongoDB Atlas Icon
Gen AI apps are built with MongoDB Atlas

The database for AI-powered applications.

MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
Start Free
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of Apache Flex SDK!

Additional Project Details

Programming Language

ActionScript

Related Categories

ActionScript Frameworks

Registered

2025-08-11