Azure Service Bus vs ZeroMQ: What are the differences?
Azure Service Bus: 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; *ZeroMQ:** Fast, lightweight messaging library that allows you to design complex communication system without much effort. The 0MQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products. 0MQ sockets provide an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols and more.
Azure Service Bus and ZeroMQ belong to "Message Queue" category of the tech stack.
ZeroMQ is an open source tool with 5.43K GitHub stars and 1.59K GitHub forks. Here's a link to ZeroMQ's open source repository on GitHub.
According to the StackShare community, ZeroMQ has a broader approval, being mentioned in 45 company stacks & 88 developers stacks; compared to Azure Service Bus, which is listed in 11 company stacks and 8 developer stacks.