WinFF is a GUI for the command line video converter FFmpeg or avconv.
Copyright © 2006-2020 Matthew Weatherford matt@biggmatt.com
Download instalation files for multiple platforms here.
On Windows you can use chocolatey: choco install winff
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.