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 primarily for advanced users who prefer command line operations and customization. In contrast, YTD YouTube Downloader offers a more user-friendly experience with a graphical interface, making it suitable for casual users who want quick downloads without delving into technical details.