A torrent indexer is a website or service that catalogs and organizes torrent files, which are used for peer-to-peer file sharing. These indexers allow users to search for and download various types of content, such as movies, music, and software, by providing links to torrent files hosted on different servers. Users typically visit a torrent indexer to find specific files, read comments, and check the number of seeders and leechers. Popular examples of torrent indexers include The Pirate Bay and 1337x. While they facilitate access to content, users should be aware of the legal implications of downloading copyrighted material.