youtube-dl is a command-line utility for downloading videos or extracting audio files from streaming websites such as YouTube, Dailymotion, and Vimeo. Developed by Ricardo Garcia Gonzales
License: Open Source
YouTube-dl is a powerful open-source tool favored by advanced users for its extensive features and support for various platforms, while VideoRipper.me offers a more accessible, web-based solution ideal for casual users looking for quick downloads.