((free)) - Flex Builder Plugin

The modern community standard for ActionScript and Flex development is VS Code with the extension.

If you are a developer tasked with maintaining a legacy Flex application today (and yes, some still exist in banking and aviation), understanding the role of custom plugins may be the key to either migrating that application or squeezing a few more years of productivity out of Flash Builder. The eclipse.org archives and the Apache Flex wiki remain the best places to find documentation for these long-obsolete but fascinating tools. flex builder plugin

Note: This guide assumes you are setting up a maintenance environment for a legacy project. For modern development, see Section 4. The modern community standard for ActionScript and Flex