Online Convert PPTX to MP4 - Online Convert allows you to convert any Microsoft PowerPoint 2007 PPTX file to MP4 easily.
FreeConvert Audio Converter - FreeConvert offers a highly efficient Audio Converter to help you convert them from one format to another.
iSpring Convert - Convert PowerPoint to HTML5 and MP4 video
Zamzar - Free conversion online of many type of documents (images, text, video, audio...
Converter365 Convert PPT to MP4 - Converter365 is an online freeware converter tool that enables you to convert PPT to MP4 with great ease.
Clipperly - Convert, edit or optimize your files online. More than 400 different formats supported among documents, images, spreadsheets, ebooks, archives, presentations, audios and videos.