Niconico is a Japanese video-sharing platform launched in 2006. It allows users to upload, share, and view videos, similar to YouTube. One of its unique features is the ability for viewers to comment on videos in real-time, with comments appearing directly on the video screen. The platform hosts a wide variety of content, including music, anime, and gaming videos. It also supports live streaming and has a strong community aspect, where users can interact through comments and forums. Niconico has become a significant part of Japanese internet culture, influencing trends and content creation.