Allows web apps to establish direct transmission control protocol (TCP) and user datagram protocol (UDP) communications with network devices and systems.


Many network devices use their own protocols over TCP or UDP, instead of using HTTPS. Like WebUSB, WebMIDI and WebBluetooth, this API allows web apps to communicate with local devices and information systems.



Specification link

Specification being incubated in a Community Group

Status in Chromium


In development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • Harmful
  • No signal
  • Positive


Search tags

networking, TCP, UDP, sockets,

Last updated on 2022-01-21