It is a FLOSS, powerful, multitasking and cross-platform graphical user interface (GUI) for FFmpeg and yt-dlp. Designed for advanced and beginner users, it offers a wide range of features and functions, making it a comprehensive software solution.
Videomass is Free (libre) Software, written in Python3 using the wxPython Phoenix toolkit; it works on Linux, MacOs, Windows and FreeBSD.