WinX Free FLV to MP4 Converter is a free video converter which is especially designed for converting FLV to MP4 files. This free and easy-to-use FLV to MP4 video converter offers you super fast converting speed and outstanding audio/video quality. You can free convert FLV videos to MP4 videos in only a few clicks. This free FLV to MP4 video converter software is also built in intuitive and practical features to trim video clips, customize video audio parameters, grab video images to BMP, JPEG formats. With simply clicks on this free FLV to MP4 video converter, users can effortlessly adjust the parameters to manage the output MP4 video size and quality. 100% Clean, No Spyware, No Malware, No Adware and No Virus. Key Features: Clean and Free Video Converter: Free convert videos from FLV to MP4. Extract and save screenshot pictures as BMP and JPEG. 100% clean and free without spyware, malware, adware or virus. High Quality and Fast Video Converter : Built in High Quality Engine which delivers excellent audio/video effect. Enjoy lossless sound image quality. Embedded with super fast video converting system, offering 300%-500% real time converting speed. Support both single and batch video conversion mode, save more video converting time. Easy Parameters Setting: Audio/video parameters are adjustable for users to balance video/audio quality and file size. Audio Setting - Set Audio Format, customize Audio Quality, Audio Sample Rate and volume for desired audio effect. Video Setting - Select Video Format, control Video Frame Rate and Video Resolution to get ideal video quality.