Tribler is a free and open-source file-sharing app for Linux, macOS, and Windows. It adds something unique to the BitTorrent peer-to-peer protocol: onion routing. Onion routing, best known from the Tor Browser project, is a network routing scheme that relays connections via multiple proxies. Tribler encrypts your connections in layers so that each relay proxy only knows the IP address of the next and previous hop in the routing chain. This system can help provide more anonymity and obscure what and where you’re downloading.