SDKs, IDEs, and utilities for transpiling ActionScript to JavaScript
Developer SDK with command line compilers for ActionScript and MXML. Can transpile to JavaScript for the web browser or build SWF files for the Adobe Flash runtimes. Build applications using either the FlexJS framework or use pure ActionScript with your favorite libraries like jQuery, CreateJS, and Pixi.js.
License: Apache 2.0. Requirements: Java Runtime.
An open source extension for ActionScript development built on the popular open source, cross-platform text editor from Microsoft.
Open Source
A popular, multi-language IDE that includes robust support for ActionScript and Apache Flex.
Commercial, with Free Trial
Tutorial: Create a project in IntelliJ IDEA Official Website
An Eclipse plugin for web and interactive, multi-platform development with ActionScript and more.
Commercial and Free editions available
A utility that reads asconfig.json and compiles an ActionScript project from the command line. Use the same project configuration from Visual Studio Code with asconfigc on the command line.
License: Apache 2.0. Requirements: Node.js.
A command line utility that converts TypeScript definitions (d.ts files) for JavaScript libraries into SWC files. Use these SWCs with Apache FlexJS for strict compile-time type checking, as if the JavaScript library were written in ActionScript. Add the SWCs to IDEs, like Flash Builder and IntelliJ IDEA, and you'll get helpful code suggestions as you type.
License: Apache 2.0. Requirements: Node.js.