This is a submission for DEV Challenge v24.03.20, One Byte Explainer: Browser API or Feature.

Explainer

WebRTC lets browsers share data without plugins, enabling things like video calls & file sharing right in the browser. It uses peer-to-peer connections whenever possible to connect with devices in the local network, which can reduce strain on servers.

Additional Context

Snapdrop.net is one of many examples of the uses for this API, using it with WebSocket API allows endpoints on the same local network to distribute files and send data between them.
We can find the source code for the project here.