[NayamAmarshe]

It's using WebRTC's P2P. It does require internet but the middleman is absent in file-sharing.

[progval]

WebRTC's P2P does require servers; and sometimes even a middleman (TURN). OP wrote about it in https://dikshantraj2001.medium.com/nat-stun-turn-and-ice-466...

[dkraj]

Glad you liked it :)