BlackMagicDesign Davinci Resolve I'm currently using the free version of this one, and I've gotta say it's pretty awesome, clean interface, lots of functionality, many supported codecs. https://www.blackmagicdesign.com/uk/products/davinciresolve/ HitFilm Express This is also another good one, very much reminds me of Adobe Premiere and After Effects rolled into one: https://hitfilm.com/express FFmpeg https://www.ffmpeg.org/ One slightly more for the nerds, but not as technical as you might think, and incredibly useful. For example if you don't want to install Quicktime on a windows machine, this will allow you to convert movs into image sequences and vice-versa, as well as a ton more. It's a command-line tool, with no installation as such, so to run it you first need to cd into the directory where the ffmpeg executable is stored, alternatively you could build convenient python wrapper or a simp