Before this was/are so many but non was/is as much useful as this one which is completely free. Yes I am talking about Miro video converter which can convert video to almost any video format i.e. MP4, WebM (vp8), Ogg Theora, or for Android, iPhone, and iPad etc.
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Miro free open source video converter[/caption]
Miro video converter is a new free and open source software to convert your video easily for your smartphones. Currently it is supporting variety of android based leading market smartphones, iOS phone and other smart devices i.e. tablet and kindle fire etc.
[button color="red" size="small" link="http://www.mirovideoconverter.com/" target="blank" ]Download Miro Video Converter[/button]