Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
Livestreamer - Livestreamer is a command-line utility that pipes video streams from various services into a video...
Save IGTV - IGTV Downloader - Save IGTV Videos on any device with the fastest IGtv video downloader.
Streamlink - Streamlink is a fork of the discontinued livestreamer project.
Viddit.Red - Download Reddit Video - helps download video from reddit, with audio. works with many different reddit posts and embeds.
StreamBuffRe - StreamBuffRe buffers online streams and redirects them to different destinations.