NSQ vs pg-amqp-bridge: What are the differences?
Developers describe NSQ 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. On the other hand, pg-amqp-bridge is detailed as "Send Messages from PostgreSQL to RabbitMQ". This tool enables a decoupled architecture, think sending emails when a user signs up. Instead of having explicit code in your signup function that does the work (and slows down your response), you just have to worry about inserting the row into the database.
NSQ and pg-amqp-bridge can be primarily classified as "Message Queue" tools.
NSQ and pg-amqp-bridge are both open source tools. NSQ with 15.6K GitHub stars and 2.03K forks on GitHub appears to be more popular than pg-amqp-bridge with 251 GitHub stars and 14 GitHub forks.