Message Queue Software

Cloud Pub/Sub is a flexible, reliable, real-time messaging service for independent applications to publish & subscribe to asynchronous events.

Eclipse Mosquitto is an open source (EPL/EDL licensed) message broker that implements the MQTT protocol versions 5.0, 3.1.1 and 3.1. Mosquitto is lightweight and is suitable for use on all devices

Oracle Tuxedo is an application server for C, C++, COBOL, Java and dynamic language applications in private cloud or traditional data center environments.

RabbitMQ is an open source message broker software.

Distributed background task queue for Python backed by Redis, a super minimal Celery - GitHub - wakatime/wakaq: Distributed background task queue for Python backed by Redis, a super minimal Celery

EMQX is an open source MQTT 5.0 broker for mission-critical IoT scenarios, massively scalable and highly available clustering, running anywhere from edge to cloud.

freemium

Amazon Simple Queue Service is a fully managed message queuing service.

Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways.

Apache Kafka is publish-subscribe messaging rethought as a distributed commit log.

Kubernetes message broker and message queue platform. An open-source project providing the most efficient way to connect microservices.

Distributed transactions middleware, application server and Oracle Tuxedo alternative

freemium €6500.0 / One-off (Single operating system instance)

A next-generation cloud-ready platform providing seamless integration of digital channels with legacy systems through advanced API enablement – enabling digital service economies.

NATS Server is an open source messaging system for cloud native applications, IoT messaging, and microservices architectures.