Free Online FLV to MP4 Converter
FLV
to
MP4
FLV
Flash Video
FLV is a Flash Video container used on popular hosting sites that stores audio, video and other data. It often uses h.264 or h.263 codecs for video storage and MP3 for audio. There are a lot of programs for both Windows and Mac operating systems that are able to open .flv files.
MP4
MPEG-4 Part 14
MP4 is an extension defined by MPEG-4 video standard and AAC audio standard. It is a container that supports all kinds of media such as video, audio, subtitles, 2D and 3D graphics. It is possible to open MP4 file with almost any player on Windows but on Mac you should use a plug-in or just convert the file to another format.
How To Convert FLV to MP4

Step 1: Upload Files
Click the upload button or drag and drop your FLV files into the upload area.

Step 2: Convert File
Click "Convert" and wait for conversion done

Step 3: Download
Download the converted MP4 file