Apache Pulsar Alternatives

RabbitMQ is a complete and highly reliable enterprise messaging system based on the emerging AMQP standard

Zenaton is a developer tool and hosted workflow engine for writing, running and monitoring all of your background processes whether it is a single task or a long running workflow. It allows developers to easily integrate third party services and APIs iby triggering tasks and...

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 from low power single board computers to full servers.

Amazon Simple Queue Service (SQS) is a fast, reliable, scalable & affordable message queuing service. Use SQS to transmit data without losing messages.

ØMQ is a high-performance asynchronous messaging library aimed at use in scalable distributed or concurrent applications. It provides a message queue, but unlike message-oriented middleware, a ØMQ system can run without a dedicated message broker.

Apache ActiveMQ is the most popular and powerful open source messaging and Integration Patterns provider.

NSQ is a realtime distributed messaging platform designed to operate at scale, handling billions of messages per day.

nanomsg is a socket library that provides several common communication patterns. It aims to make the networking layer fast, scalable, and easy to use. Implemented in C, it works on a wide range of operating systems with no further dependencies.

Ensign is a secure data collaboration platform that empowers developers and data engineers to easily set up tuneable and scalable data streams for real time apps. models, and analytics, no matter where the data lives.

OpenSource multiplayer and network messaging.

• Connections are routed through socket server with minimum latency, ideal for action games.
• Simple interface.
• Server written on blazing fast nodejs.
• Works great through any NAT (local area network), messages delivery is reliab.

goqite (pronounced Go-queue-ite) is a persistent message queue Go library built on SQLite and inspired by AWS SQS (but much simpler).

Dedicated platform to send and receive messages within your applications. It has simple REST API and clean web UI. It allows to control access to your queues with managed access tokens.