There is a nice project called WebTorrent (https://github.com/feross/webtorrent/) which allows using Torrent protocol in the internet browser.
One can reduce data transfer by using torrent as a CDN or render webpage from a torrent: https://github.com/retrohacker/peerweb.js

OR share files:

Two users on the internet can establish torrent connection between them (peer to peer / P2P) and share a file.

Here are implementations/tools to share file directly. Try:

https://file.pizza/
https://instant.io/ (Streaming file transfer over WebTorrent)
http://www.p2pdrop.com (MS Windows application based on P2P torrent file sharing)

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https://github.com/HelloZeroNet/ZeroNet - ZeroNet - Decentralized websites using Bitcoin crypto and BitTorrent network https://www.reddit.com/r/zeronet/
http://127.0.0.1:43110/1GrtBsG57kjU2Z3iAQebG9D5c8CRDRLoPj - page running thru Zeronet