Mosquitto vs NSQ: What are the differences?
Developers describe Mosquitto as "An open source message broker that implements the MQTT protocol". It is lightweight and is suitable for use on all devices from low power single board computers to full servers.. The MQTT protocol provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for Internet of Things messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers. On the other hand, NSQ is detailed as "A realtime distributed messaging platform". NSQ is a realtime distributed messaging platform designed to operate at scale, handling billions of messages per day. It promotes distributed and decentralized topologies without single points of failure, enabling fault tolerance and high availability coupled with a reliable message delivery guarantee. See features & guarantees.
Mosquitto and NSQ can be primarily classified as "Message Queue" tools.
NSQ is an open source tool with 15.6K GitHub stars and 2.03K GitHub forks. Here's a link to NSQ's open source repository on GitHub.
Stripe, Docker, and Segment are some of the popular companies that use NSQ, whereas Mosquitto is used by Teleolabs, Xanview Ltd, and Future Corporation. NSQ has a broader approval, being mentioned in 21 company stacks & 8 developers stacks; compared to Mosquitto, which is listed in 3 company stacks and 3 developer stacks.