Caption - Open-source captioning tool to help find the right subtitles.
TubeChop - TubeChop allows you to easily chop a funny or interesting section from any YouTube video and share it.
Ava - Making conversations accessible for the deaf
Veed YouTube Cutter - Veed YouTube Cutter is an intelligent online platform that is making things extremely easy for you in cutting the videos to any length you want.
Captioned - Say, show, share. Create a 60 second captioned video.
YT Cutter - YT Cutter is a free-to-use online tool that is making your life easy in cutting the videos to any length with high quality.