ZeroMQ core engine in C++, implements ZMTP/3.1 (by zeromq)

ZeroMQ Alternatives

Similar projects and alternatives to ZeroMQ

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better ZeroMQ alternative or higher similarity.

ZeroMQ reviews and mentions

Posts with mentions or reviews of ZeroMQ. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-10-09.
  • ZeroMQ – Relicense from LGPL3 and exceptions to MPL 2.0
    8 projects | | 9 Oct 2023
    Also 4.3.5 is out today with the new license:
    8 projects | | 9 Oct 2023
    People contacted were people who made major modifications, not every single contributor. And yeah, if the contributor don't agree to the new license, you can either don't do the license change, or remove the code they wrote as they don't agree to the new license.

    There is more background here:

    Sometimes companies who do "FOSS" make you sign some sort of agreement that they own the code you produce and you won't have any say about re-licensing, so maybe the projects you're thinking about have done that?

    8 projects | | 9 Oct 2023
    Remarkable, up until recently, requests for a new release were sumewhat brusquely rejected and marked as spam.

    I wonder what made the maintainer change his mind.

    8 projects | | 9 Oct 2023
  • Essentials of Object Oriented and Functional Programming: A Guide to Modular Code
    3 projects | | 27 Jul 2023
    FP Libraries: gRPC, ZeroMQ, and AREG are examples of libraries with a special focus on providing possibilities for Interprocess Communication. Developed using C++, they facilitate communication through predefined APIs, emphasizing functional programming concepts.
  • A Modern High-Performance Open Source Message Queuing System
    17 projects | | 27 Jul 2023
    Unlikely, but they seem to be different things altogether. BlazingMQ appears to be a traditional message queue (think ActiveMQ), with message peristence. ZeroMQ is more of a network middleware (think Tibco Rendezvous), and does not include persistence.

    BlazingMQ also appears to be more of a "platform" or "service" that an app can use (sort of like Oracle, say) -- ZeroMQ includes libraries that one can use to build an app, service or platform, but none is provided "out of the box".

    Which makes it harder to get started with ZeroMQ, since by definition every ZeroMQ app is essentially built "from scratch".

    If you're interested in ZeroMQ, you may want to check out OZ (, which is a Rendezvous-like platform that uses the OpenMAMA API ( and ZeroMQ ( transport to provide a full-featured network middleware implementation. OZ has been used in our shop since 2020 handling approx 50MM high-value messages per day on our global FIX network.

  • need xbps-src help
    4 projects | /r/voidlinux | 2 Jan 2023
    -- Using src=''
  • What network messaging library do you recommend?
    6 projects | /r/cpp | 6 Dec 2022
    Just check copying file in source repo
  • What they don't teach you about sockets
    2 projects | | 26 Jul 2022
    I think the situation is more subtle than the poster admits.

    No, ZeroMQ and successors do not tell you about socket state. You can't detect disconnection or reconnection. But then if a TCP connection fails in some way that does not lead to disconnection (packets getting dropped, remote machine powers down), it can't possibly tell you about that either, but you still need to deal with it. So in any case, you need some sort of application-level error detection and recovery; you need heartbeats, and serial numbers in messages, and a protocol for explicitly restarting a connection and performing the initial handshake. And once you have that, explicit connection events from ZeroMQ are much less important.

    Admittedly, given that this is a TCP transport, reporting reconnections would still be useful, because TCP won't ever drop messages from the interior of a sequence itself (if it delivers 15, it has delivered 1 - 14 already), so you shouldn't need the serial numbers.

    And if it's really not possible to detect authentication failures, than that seems rubbish. And it seems that is indeed the case:

  • Encryption using ZMQ: How to handle certificates?
    2 projects | /r/learnprogramming | 3 Jul 2022
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Basic ZeroMQ repo stats
about 1 month ago

zeromq/libzmq is an open source project licensed under Mozilla Public License 2.0 which is an OSI approved license.

The primary programming language of ZeroMQ is C++.

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