socketio/engine.io

The engine used in the Socket.IO JavaScript server, which manages the low-level transports such as HTTP long-polling and WebSocket.

4,576

1,143 commits

updated Jul 9, 2024

socket.io

See the code

README

This repository and its history have been merged into the Socket.IO monorepo.

javascript

nodejs

real-time

websocket

Project health

Overall

1.8/10

Maintained

0/10

Code review

0/10

OpenSSF Scorecard

npm

engine.io

Latest release

6.6.11 · Sep 24, 2026

Releases this year

Significant stargazers

Maciej Hirsz

457 followers · starred Nov 2011

Jean Barkhuysen

308 followers · starred May 2017

Brian Hartvigsen

88 followers · starred Jul 2013

Santiago Gimeno

223 followers · starred Jun 2014

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socketio/engine.io

The engine used in the Socket.IO JavaScript server, which manages the low-level transports such as HTTP long-polling and WebSocket.

4,576

1,143 commits

updated Jul 9, 2024

socket.io

See the code

README

This repository and its history have been merged into the Socket.IO monorepo.

javascript

nodejs

real-time

websocket

Project health

Overall

1.8/10

Maintained

0/10

Code review

0/10

OpenSSF Scorecard

npm

engine.io

Latest release

6.6.11 · Sep 24, 2026

Releases this year

Significant stargazers

Maciej Hirsz

457 followers · starred Nov 2011

Jean Barkhuysen

308 followers · starred May 2017

Brian Hartvigsen

88 followers · starred Jul 2013

Santiago Gimeno

223 followers · starred Jun 2014

Similar repos

socketio/socket.io-client

Realtime application framework (client)

10,582

same org

socketio/socket.io

Bidirectional and low-latency communication for every platform

63,213

same org

rauchg/node.websocket.js

WebSocket-compatible realtime HTTP server implemented with Node.JS

269

sockjs/sockjs-node

WebSocket emulation - Node.js server

2,099

miguelgrinberg/python-engineio

Mirror of https://code.miguelgrinberg.com/miguelgrinberg/python-engineio

258

mrniko/netty-socketio

Socket.IO server implemented on Java. Realtime java framework

7,018

miguelgrinberg/python-socketio

Mirror of https://code.miguelgrinberg.com/miguelgrinberg/python-socketio

4,370

sockjs/sockjs-client

WebSocket emulation - Javascript client

8,504