GNU is actively developing Gnash, an open source Flash movie player distributed under the GPL license. Based on GameSWF, Gnash will eventually provide complete support for SWF version 7 compliant Flash movies. Implemented with OpenGL and libxml2, Gnash will be avilable as a standalone Flash player, and as a Firefox plug-in. In order to avoid any potential intellectual property conflicts, the Gnash developers are not using any Macromedia tools to facilitate faster development. Instead of reverse engineering Macromedia technologies, the Gnash developers are basing their implementation on the SWF specification.