Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
riv.yt - A minimalist way to view and share YouTube videos
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Mindful Humans - Community of makers discovering happiness ๐
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
Cevoid - Shoppable visaul user-generated content for e-commerce