Videomass2 is a free, open source and cross-platform GUI for FFmpeg
Videomass2 is also on sourceforge.net
If you like Videomass2 and you want to support its development, consider making a donation.
This will encourage development:
Copyright © 2015 - 2018 Gianluca Pernigotto
Author and Developer: Gianluca Pernigotto (jeanslack)
License: GPL3 (see License page or COPYING file in the source folder)