YouTube is a video-sharing platform where users can upload, share, and view videos with others. Founded in 2005, it has become the largest online video repository, with over 2 billion monthly active users. YouTube offers a vast array of content, including music videos, educational tutorials, vlogs, product reviews, and more. Users can create their own channels, subscribe to their favorite creators, and engage with content through likes, comments, and shares. With its vast community and endless entertainment options, YouTube has revolutionized the way we consume online video content.