KM Player is a media player which can open SWF files on Mac as well. It is compatible with Windows, Mac and Android operating systems. The drag and drop option for SWF files is also present. I tried the version for 10.6 up, presuming that 10.6.8 would be covered. How to perform a 'clean install' of Flash Player in Mac OS X. SWF & FLV Player is a free, swift and smart Flash player for Mac OS X. Eltima enriched it with numerous handy options and controls, which ensure top grade usability for viewing and managing Flash movies.