A free, open source Flash player
Lightspark is an LGPLv3 licensed Flash player and browser plugin written in C++/C that runs on Linux and Windows.
It aims to support all of Adobe's Flash formats.
Lightspark is an open source Flash player implementation for playing files in the SWF format.
Lightspark can run as a web browser plugin or as a standalone application.
Lightspark supports SWF files written on all versions of the ActionScript language.