Zamzar - Free conversion online of many type of documents (images, text, video, audio...
FileRun - Beautiful, fast and reliable selfhosted file sharing and sync.
Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.
PHP File Manager - phpFileManager is a complete filesystem management tool on a single file.
Convertio - File Conversion in the Cloud
HRCloud2 - A full-featured home-hosted Cloud Drive & Personal Assistant.