ZeroMQ

An open-source universal messaging library

Why ZeroMQ?

ZeroMQ (also known as ØMQ, 0MQ, or zmq) looks like an embeddable networking library but acts like a concurrency framework. It gives you sockets that carry atomic messages across various transports like in-process, inter-process, TCP, and multicast. You can connect sockets N-to-N with patterns like fan-out, pub-sub, task distribution, and request-reply. It's fast enough to be the fabric for clustered products. Its asynchronous I/O model gives you scalable multicore applications, built as asynchronous message-processing tasks. It has a score of language APIs and runs on most operating systems.

Universal

Connect your code in any language, on any platform.

Smart

Smart patterns like pub-sub, push-pull, and client-server.

High-speed

Asynchronous I/O engines, in a tiny library.

Multi-Transport

Carries messages across inproc, IPC, TCP, UDP, TIPC, multicast and WebSocket

Community

Backed by a large and active open source community.

The Guide

Explains how to use ØMQ with 60+ diagrams and 750 examples in 28 languages

Used by

Microsoft
Microsoft
Samsung
Samsung
AT&T
AT&T
Spotify
Spotify
Digital Ocean
Digital Ocean
Auth0
Auth0
Bitcoin
Bitcoin
Jupyter
Jupyter
Mongrel2
Mongrel2