Flash for Linux — это проект, представляющий собой среду разработки для Macromedia Flash — формата, широко применяемого для веб-приложений и векторные анимации.

F4L находится на ранней стадии разработки, поэтому не рекомендуется для людей без знания С++, QT, Ming и т.д.

F4L является клоном Macromedia Flash. Последняя версия которого является Flash MX 2004. Flash разработан, чтобы помочь людям создавать программы, которые можно использовать на любом компьютере и которые могут быть распространены через Интернет.

Flash offers easy development of professional applications. Flash development is based mostly on a Graphical User Interface (GUI). Through the GUI, a developer can draw their application on the screen. Drawings can be converted to animations, buttons, and other features with the development environment's menus and dialog boxes.

Competing methods of development, such as C++, Java or JavaScript, require technical knowledge of a special programming language and mathematics. A Flash application's GUI features are extremely limited compared to a programming language based project. To compensate for this weakness, Macromedia added Action Scripts to Flash.

Action Scripts are a sort of programming language, but there are only a few commands to learn, and they are selected off a menu. Action Scripting is equivalent to programming a graphing calculator with BASIC; it should not take you more than a few days to learn, if you have the patience to read boring instructions.

While Flash can be developed with very few Action Scripts, the scripts add to the interactivity of the application. Most web sites using Flash do not use Action Scripts intensively, with the exception of games. Flash can also work with JavaScript.