qBitController is a free, open-source application for remotely managing qBittorrent downloads from mobile and desktop devices. It connects to existing qBittorrent servers and provides a convenient interface for controlling torrent activity. Users can add downloads through magnet links or torrent files and monitor their progress. Individual torrents can be paused, resumed, deleted, and inspected for detailed information. Sorting and filtering tools organize downloads by status, category, tracker, size, and transfer speed. The application also supports managing tags, RSS feeds, and automatic download rules. Integrated torrent searching helps users discover available content. Built with Kotlin Multiplatform, qBitController supports Android, iOS, Windows, macOS, and Linux.