Where Does qBittorrent Store Torrent Data and Settings?
qBittorrent BT_backup resume data and config locations on Windows, macOS and Linux, versus actual downloads.
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qBittorrent keeps its working database in a BT_backup folder: .torrent metadata plus .fastresume state for everything in your transfer list. Actual downloaded files live wherever Default Save Path points, usually Downloads.
BT_backup is hardcoded and cannot move from settings. Deleting it wipes the transfer list, though downloaded files stay on disk.
Where qBittorrent stores this, by platform
%LOCALAPPDATA%\qBittorrent\BT_backup
Config (qbittorrent.ini) sits one level up. Downloads default to the path in Tools, Options, Downloads, Saving Management.
~/Library/Application Support/qBittorrent/BT_backup
Same BT_backup role. In Finder use Go > Go to Folder. Config lives next to it as qbittorrent.ini.
~/.local/share/qBittorrent/BT_backup
Uses XDG data home when set. Pre 4.x installs may still use the older data/qBittorrent subpath; check both if migrating.
Frequently asked questions
How do I move qBittorrent to a new PC without re-adding torrents?
Copy the BT_backup folder and qbittorrent.ini to the same spots on the new machine, keeping download paths identical. Torrents reappear in place.
Can I relocate BT_backup to another drive?
Only with a symlink or junction at the original path. The client offers no setting for it; the copy .torrent files option covers human readable copies only.
Notice an outdated path? Let us know.