dottorrent-gui - An advanced GUI torrent file creator with batch functionality, powered by PyQt and dottorrent.
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Torrent File Editor - Qt based GUI tool designed to create and edit .torrent files.
qMakeTorrent - an advanced torrent file creator with batch functionality, powered by libtorrent-rasterbar
Orbit Downloader - Orbit Downloader is a browser add-on designed to help you simplify your download process, but while its ease of use is respectable, it comes with some serious downsides.
qBittorrent - Lightweight and open source torrent client that runs on all major platforms.