C# Messaging

Open-source C# projects categorized as Messaging

Top 22 C# Messaging Projects

  1. MassTransit

    Distributed Application Framework for .NET

    Project mention: Would the .NET community benefit from an open-source MassTransit fork? | news.ycombinator.com | 2025-10-24

    “MassTransit is the trusted messaging framework powering mission-critical applications…”

    https://masstransit.io/

  2. ReSharper

    ReSharper is now available in VS Code and Cursor. ReSharper brings a professional toolset for C# developers backed by over 20 years of experience, enterprise-grade security, SOC 2 compliance, and the trust of companies worldwide.

    ReSharper logo
  3. NetMQ

    A 100% native C# implementation of ZeroMQ for .NET

  4. EasyNetQ

    An easy to use .NET API for RabbitMQ

  5. Rebus

    :bus: Simple and lean service bus implementation for .NET

  6. NServiceBus

    The gold standard for async .NET microservices on Azure, AWS and on-prem

  7. Foundatio

    Pluggable foundation blocks for building distributed apps.

  8. MessagePipe

    High performance in-memory/distributed messaging pipeline for .NET and Unity.

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. booking-microservices

    A practical microservices with the latest technologies and architectures like Vertical Slice Architecture, Event Sourcing, CQRS, DDD, gRpc, MongoDB, RabbitMq, Wolverine, and Aspire in .Net 10.

  11. WatsonTcp

    WatsonTcp is the easiest way to build TCP-based clients and servers in C#.

  12. SlimMessageBus

    Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.

  13. SuperSimpleTcp

    Simple wrapper for TCP client and server in C# with SSL support

  14. booking-modular-monolith

    A practical Modular Monolith architecture with the latest technologies and architecture like Vertical Slice Architecture, Event Driven Architecture, CQRS, DDD, gRpc, Masstransit, and Aspire in .Net 10.

  15. silverback

    Silverback is a message bus and broker integration library for .NET. It is designed to simplify event-driven architectures and asynchronous messaging, with first-class support for Apache Kafka and MQTT.

  16. Easy.MessageHub

    No need for .NET Events! A thread-safe, high performance & easy to use cross platform implementation of the Event Aggregator Pattern.

  17. Signal-Windows

    Unofficial Signal Private Messenger for Windows

  18. OpenTransit

    Distributed Application Communication Framework for .NET(A fork of MassTransit v8) (by OpenTransitLab)

    Project mention: Introducing OpenTransit: A Free, Open-Source Fork of MassTransit v8 | dev.to | 2025-12-05

    open-source, community-led **fork of MassTransit v8 — built to keep the ecosystem **free, stable

  19. AsyncMonolith

    Facilitates simple durable and asynchronous messaging in dotnet apps.

  20. Crypter

    A web application that offers end-to-end encrypted file and message transfer using Blazor WASM, Geralt and BlazorSodium (libsodium language bindings), Entity Framework Core, Hangfire, Docker, and Mailkit.

  21. Ziggurat

    A .NET library to create message consumers. (by rafaelpadovezi)

  22. eneter-net

    Lightweight framework for interprocess communication for .NET platforms.

  23. Ixian-S2

    Decentralized communication & streaming network of Ixian. Implements the Starling presence scaling model and incentivized relay infrastructure, enabling real-time messaging, IoT networking, and trillion-device scalability.

  24. ftw-cli

    peer to peer, IP based, end to end encrypted messenger application

  25. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
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# Messaging discussion

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C# Messaging related posts

  • C# Image Resizer Using ZeroMQ

    5 projects | dev.to | 30 Apr 2025
  • .NET library MassTransit going commercial with V9

    1 project | news.ycombinator.com | 3 Apr 2025
  • Project Structure Review [.Net] [Console]

    2 projects | /r/PinoyProgrammer | 19 Sep 2023
  • Easy to use library for RabbitMQ in dotnet core.

    3 projects | /r/csharp | 21 May 2023
  • Consistência de dados e padrão Outbox

    4 projects | dev.to | 13 May 2023
  • [Hiring] (Online/Contract) Need help setting up CI/CD pipeline for web application

    1 project | /r/forhire | 20 Apr 2023
  • Signal

    1 project | /r/windowsphone | 22 Mar 2023
  • A note from our sponsor - ReSharper
    www.jetbrains.com | 18 Jul 2026
    ReSharper brings a professional toolset for C# developers backed by over 20 years of experience, enterprise-grade security, SOC 2 compliance, and the trust of companies worldwide. Learn more →

Index

What are some of the best open-source Messaging projects in C#? This list will help you:

# Project Stars
1 MassTransit 7,776
2 NetMQ 3,168
3 EasyNetQ 3,058
4 Rebus 2,644
5 NServiceBus 2,168
6 Foundatio 2,094
7 MessagePipe 1,936
8 booking-microservices 1,375
9 WatsonTcp 673
10 SlimMessageBus 648
11 SuperSimpleTcp 530
12 booking-modular-monolith 517
13 silverback 284
14 Easy.MessageHub 267
15 Signal-Windows 111
16 OpenTransit 102
17 AsyncMonolith 90
18 Crypter 45
19 Ziggurat 28
20 eneter-net 15
21 Ixian-S2 9
22 ftw-cli 5

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