Project Summary
- The socket library that acts as a concurrency framework.
- Faster than TCP, for clustered products and supercomputing.
- Carries messages across inproc, IPC, TCP, and multicast.
- Connect N-to-N via fanout, pubsub, pipeline, request-reply.
- Asynch I/O for scalable multicore message-passing apps.
- Large and active open source community.
- 30+ languages including C, C++, Java, .NET, Python.
- Most OSes including Linux, Windows, OS X.
- LGPL free software with full commercial support.
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In a Nutshell, ZeroMQ...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 13 years of effort (COCOMO model)
starting with its first commit in July, 2009
ending with its most recent commit 29 days ago
Quick Reference
LGPLv3 + static link exception (ZeroMQ)
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Include Copyright
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Include License
Include Install Instructions
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
Project Vulnerability Report
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Vulnerability Exposure Index
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30 Day SummaryJul 24 2026 — Aug 23 2026
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12 Month SummaryAug 23 2025 — Aug 23 2026
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