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Top 20 C# Messaging Projects
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Project mention: Building a Pub/Sub System in .NET: MassTransit, Reactive Extensions, and BlockingCollection | dev.to | 2025-08-26
In the MassTransit demo below, a PublisherService is implemented as a hosted service to periodically publish messages.
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The ImageProcessor in the repository has been implemented in C# using ZeroMQ and the NetMq nuget package. It also uses SixLabors.ImageSharp to resize the image. It consists of
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Project mention: .NET library MassTransit going commercial with V9 | news.ycombinator.com | 2025-04-03
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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booking-microservices
A practical microservices with the latest technologies and architectures like Vertical Slice Architecture, Event Sourcing, CQRS, DDD, gRpc, MongoDB, RabbitMq, Masstransit, and Aspire in .Net 9.
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SlimMessageBus
Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.
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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 9.
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silverback
Silverback is a simple but feature-rich message bus for .NET core (it currently supports Kafka, RabbitMQ and MQTT).
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Easy.MessageHub
No need for .NET Events! A thread-safe, high performance & easy to use cross platform implementation of the Event Aggregator Pattern.
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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.
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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
C# Messaging related posts
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C# Image Resizer Using ZeroMQ
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.NET library MassTransit going commercial with V9
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Project Structure Review [.Net] [Console]
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Easy to use library for RabbitMQ in dotnet core.
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Consistência de dados e padrão Outbox
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[Hiring] (Online/Contract) Need help setting up CI/CD pipeline for web application
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Signal
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A note from our sponsor - SaaSHub
www.saashub.com | 2 Sep 2025
Index
What are some of the best open-source Messaging projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | MassTransit | 7,507 |
| 2 | NetMQ | 3,099 |
| 3 | EasyNetQ | 2,976 |
| 4 | Rebus | 2,529 |
| 5 | NServiceBus | 2,144 |
| 6 | Foundatio | 2,045 |
| 7 | MessagePipe | 1,653 |
| 8 | booking-microservices | 1,202 |
| 9 | WatsonTcp | 639 |
| 10 | SlimMessageBus | 564 |
| 11 | SuperSimpleTcp | 510 |
| 12 | booking-modular-monolith | 389 |
| 13 | silverback | 272 |
| 14 | Easy.MessageHub | 260 |
| 15 | Signal-Windows | 112 |
| 16 | AsyncMonolith | 75 |
| 17 | Crypter | 43 |
| 18 | Ziggurat | 28 |
| 19 | eneter-net | 14 |
| 20 | ftw-cli | 5 |
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