Top 10 C# message-bus Projects

Rebus

16 2,229 8.2 C#

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

0 1,904 8.9 C#

Pluggable foundation blocks for building distributed apps.
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
RawRabbit

0 742 0.0 C#

A modern .NET framework for communication over RabbitMq
SlimMessageBus

1 433 7.1 C#

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

6 350 7.7 C#

Library for creating DotNet Web Worker threads/multithreading in Client side Blazor

Project mention: Multithreading support pushed to .net 9 | /r/Blazor | 2023-09-07

OpenSleigh

6 306 6.5 C#

OpenSleigh is a Saga management library for .NET Core.
food-delivery-modular-monolith

6 272 6.7 C#

🌭 A practical food delivery modular monolith, built with .Net 7, Domain-Driven Design, CQRS, Vertical Slice Architecture, Event-Driven Architecture, and the latest technologies.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
silverback

10 245 7.3 C#

Silverback is a simple but feature-rich message bus for .NET core (it currently supports Kafka, RabbitMQ and MQTT).
FluentMediator

0 191 0.0 C#

:twisted_rightwards_arrows: FluentMediator is an unobtrusive library that allows developers to build custom pipelines for Commands, Queries and Events.
MBus

1 1 6.9 C#

MBus is a message bus library for Unity that can handle messages of any type with type or value based subscriptions

Project mention: new message bus package | /r/unity | 2023-05-03

Anyway, here's my take on a generic message bus: https://github.com/PMelch/MBus

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# message-bus related posts

Multithreading support pushed to .net 9
1 project | /r/Blazor | 7 Sep 2023
C# Complex Web Scraper: Looking for feedback / code review?
5 projects | /r/csharp | 24 Feb 2023
Running a background process on a timer for Blazor WASM in .Net 6
1 project | /r/Blazor | 25 Oct 2022
Improve Lighthouse Performance
1 project | /r/Blazor | 5 May 2021

Index

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

	Project	Stars
1	Rebus	2,229
2	Foundatio	1,904
3	RawRabbit	742
4	SlimMessageBus	433
5	BlazorWorker	350
6	OpenSleigh	306
7	food-delivery-modular-monolith	272
8	silverback	245
9	FluentMediator	191
10	MBus	1