Anonymous Mode

When enabled, qBittorrent will take certain measures to try to mask its identity. The exact functionality of Anonymous Mode depends on the version of qBittorrent (specifically, libtorrent-rasterbar) being used.

If you're using VPN, proxy or I2P, you probably want to enable Anonymous Mode.

qBittorrent v3.3.0+

• The peer-ID will no longer include the client's fingerprint
• The user-agent will be reset to an empty string
• Other identifying information will not be exposed, such as IP, listening port, etc.

You may enable additional identity-masking features with the "Disable connections not supported by proxies" option.

qBittorrent v2.9.0 - v3.2.5

These versions of qBittorrent may make use of a version of libtorrent-rasterbar below 1.0.0. If so, enabling Anonymous Mode will enable all of the aforementioned features, plus some additional ones:

• Disables Local Peer Discovery
• Disables DHT
• Disables UPnP & NAT-PMP
• Only talks to http(s) trackers via (any) proxy
• Only talks to udp trackers via SOCKS5/I2P proxy

These additional features have since been migrated to the "Disable connections not supported by proxies" option in later versions of qBittorrent.