DamnVid is a cross-platform application to download and convert videos from your hard drive or from dozens of video sharing websites like YouTube, Dailymotion, Veoh and Metacafe. It use the FFmpeg library. It does both the downloading and the converting at the same time it downloads the file, making the whole process faster.[advt]
DamnVid has a built-in Youtube video search. Search and download directly from within the application. DamnVid Portable is a portable, standalone executable that runs DamnVid without requiring installation, which means you can carry it on a USB drive and run it on any compatible device or system.