Well renowned online converter
Online-Convert is an online file converter that supports a decent amount of file types like audio and video files or documents. They support most of the popular filetypes like MP4, MP3, PDF and JPEG. As an illustration of their quality, they are trusted by a bunch of well known companies like Dell and Unilever.
In addition to their online converter, their service can also be used on Android and Smartphone devices or using their Firefox and Chrome plug-ins.
Your media files that you have uploaded are automatically deleted after 24 hours or after 10 downloads, whichever comes first. Files can also be deleted instantly after you have downloaded it and want to prevent others from using it. There are no backups made of the file according to Online-convert.