Open Source Alternatives to Solace PubSub+

An event streaming platform that moves real-time data across clouds, datacenters, and geographies. The product enables the creation of an event mesh to route data using smart topics with hierarchy and wildcard support. It supports multiple exchange patterns, qualities of service, and protocols including AMQP, Kafka, MQTT, REST, and WebSocket. The platform is designed for enterprises to integrate applications, microservices, and IoT devices. It is deployed via cloud services, software, or hardware appliances and includes monitoring capabilities with distributed tracing based on OpenTelemetry.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Solace PubSub+ give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to Solace PubSub+. The most popular is EMQX. It uses the Apache-2.0 license and ships an official Docker image.