Flasm is a cross-platform command line tool and a decompiler for Flash ActionScript (SWF) files. It is used to decompile SWF files in order to obtain the ActionScript code within, enabling developers to easily make modifications to existing Flash applications. It also allows developers to create and debug SWF files from the command line, giving them greater control over the development process. Flasm also has the ability to detect and fix errors in SWF files, making it a popular choice for testing and debugging Flash applications. Finally, it provides a simple way to modify existing SWF files, allowing developers to quickly update existing applications with new features or bug fixes.
Discontinued The program is no longer updated. The latest version, 0.8.4, released in December 2008, can still be downloaded from the official website.