C++ publish-subscribe

Open-source C++ projects categorized as publish-subscribe
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CPP Ipc shared-memory client-server Middleware
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Top 6 C++ publish-subscribe Projects

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  1. iceoryx

    Eclipse iceoryx™ - true zero-copy inter-process-communication

    Project mention: Show HN: Threadprocs – executables sharing one address space (0-copy pointers) | news.ycombinator.com | 2026-03-23

    Seems like there's some overlap with the iceoryx project https://iceoryx.io/

  2. SaaSHub

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  3. eventpp

    Event Dispatcher and callback list for C++

  4. ecal

    📦 eCAL - enhanced Communication Abstraction Layer. A high performance publish-subscribe, client-server cross-plattform middleware.

  5. shadesmar

    Fast C++ IPC using shared memory

  6. sobjectizer

    An implementation of Actor, Publish-Subscribe, and CSP models in one rather small C++ framework. With performance, quality, and stability proved by years in the production.

  7. tcp_pubsub

    📦 TCP based publish-subscribe library for C++ 🌐 (by eclipse-ecal)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

C++ publish-subscribe discussion

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C++ publish-subscribe related posts

  • ECAL – Enhanced Communication Abstraction Layer / Pub-Sub Middleware

    1 project | news.ycombinator.com | 25 Dec 2024

  • iceoryx VS iceoryx2 - a user suggested alternative

    2 projects | 11 Nov 2024

  • Hey everyone, we've got some exciting news to share with y'all. Eclipse-ECAL just dropped version 5.11 of their sick Inter-Process Communication (IPC) framework. Get ready to take your data communication game to the next level. Who's hyped? 🙌 #EclipseECAL511 #IPCframework #datacommunication

    2 projects | /r/cpp | 17 Apr 2023

  • announcing eclipse-ecal 5.11 ipc framework

    1 project | /r/cpp | 16 Dec 2022

  • eCAL ipc framework

    1 project | dev.to | 17 Jan 2022

  • eCAL 5.9.4 released

    2 projects | /r/cpp | 17 Jan 2022

  • Shadesmar: Fast C++ IPC using shared memory

    7 projects | /r/cpp | 22 Nov 2021
  • A note from our sponsor - SaaSHub
    www.saashub.com | 13 Jun 2026
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Index

What are some of the best open-source publish-subscribe projects in C++? This list will help you:

# Project Stars
1 iceoryx 2,096
2 eventpp 1,664
3 ecal 1,011
4 shadesmar 627
5 sobjectizer 608
6 tcp_pubsub 49

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