FLV Converter Mac is the most powerful Mac FLV video converter software that includes the functions of Free YouTube Video Downloader for Mac and FLV Converter for Mac, which helps you download videos from YouTube and convert the downloaded FLV file to AVI, MP4, MPEG, 3GP, etc. on your Mac OS quickly and easily. The FLV converter for Mac tool supports download online FLV videos from video-sharing websites such as YouTube, Yahoo, Google, Break, Metacafe, MySpace, Gofish and convert the downloaded videos to all popular video formats. It can automatically detect the internet video files from the video web pages you opened in both Safari and Firefox, and download multiple files at a time.