Azure Service Bus vs NServiceBus: What are the differences?
Developers describe Azure Service Bus as "Reliable cloud messaging as a service (MaaS) *". It is a cloud messaging system for connecting apps and devices across public and private clouds. You can depend on it when you need highly-reliable cloud messaging service between applications and services, even when one or more is offline. On the other hand, *NServiceBus** is detailed as "*Enterprise-grade scalability and reliability for your workflows and integrations *". Performance, scalability, pub/sub, reliable integration, workflow orchestration, and everything else you could possibly want in a service bus.
Azure Service Bus and NServiceBus can be primarily classified as "Message Queue" tools.
According to the StackShare community, Azure Service Bus has a broader approval, being mentioned in 11 company stacks & 8 developers stacks; compared to NServiceBus, which is listed in 9 company stacks and 6 developer stacks.