Video Tools Install python to run scripts. Install ffmpeg and add it to path.(https://ffmpeg.org/) Simple python script to convert all vtt files in cwd(current working directory) to srt. Simple python script to convert all mp4 files in cwd(current working directory) to mkv.
pachax001/vtt-to-srt
Simple python script to convert all vtt files in cwd(current working directory) to srt
Python