yt-dlp - A youtube-dl fork with additional features and fixes.
Seal - Contract discovery & analytics
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Savemp3.cc - An online free YouTube converter which allows you to convert videos and audios to MP4, MP3, M4A from YouTube, Facebook, Instagram, MixCloud, Dailymotion, VEVO, bilibili, niconico, etc. Supports HD MP4, 720p, 1080p video and 320kbps MP3.
Video DownloadHelper - Browser extension to download videos from the Web
spotDL - Spotify downloader app