LightMV is a free online photo slideshow creator which can help you convert images to professional-looking videos within clicks. It offers you many kinds of beautiful theme templates so that you create photo videos for birthday, anniversary, business presentation, party, etc. Without signing up or downloading any plug-in, you just need to open your browser and visit its website to create videos instantly. There are no any limitations for using this online application. It won't add watermark on your output file.
Moreover, the designers of this free online service are keeping on studying new templates and will add more and more themes to LightMV soon!