Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
Video DownloadHelper - Browser extension to download videos from the Web
Snagit - Screen Capture Software for Windows and Mac
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.