RabbitMQ vs Solace PubSub+ Event Broker
RabbitMQ
rabbitmq.com
Solace PubSub+ Event Broker
solace.comSide by side
| Figure | RabbitMQ | Solace PubSub+ Event Broker |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 5 |
| Spec score · Message Broker Software | 8.4 (#8) | 8.2 (#13) |
| Spec score · Message Queue (MQ) Software | 8.5 (#6) | 8.2 (#11) |
| Deployment | RabbitMQ can run on cloud infrastructure, on-premises, local machines, physical or virtual hardware, containers and IaaS providers. | The broker is available as a cloud service, software, or appliance and can run in clouds, data centers, and remote locations. |
| Founded | 2007 | 2001 |
| Integrations | RabbitMQ provides client libraries for Java, .NET/C#, Erlang, and other languages, and offers a community Docker image and Kubernetes operators. | Solace offers supported micro-integrations for applications, cloud services, and integration tools. |
| Messaging patterns | RabbitMQ supports routing, filtering, streaming, and federation to direct messages from publishers to one or more consumers. | The product supports publish/subscribe, queuing, request/reply, streaming and replay use cases. |
| Protocols | RabbitMQ supports AMQP 0-9-1, AMQP 1.0, MQTT, STOMP, RabbitMQ Streams, and browser communication over WebSocket. | Connectivity includes AMQP, JMS, MQTT, REST and WebSocket protocols. |
| Rating on G2 | 4.1 out of 5 from 46 reviews | 4.4 out of 5 from 7 reviews |
| Rating on Gartner Peer Insights | 4.6 out of 5 from 12 ratings | 4.6 out of 5 from 336 ratings |
| What it does | RabbitMQ is an enterprise-grade messaging and streaming broker for communication among applications, microservices and IoT systems. | Solace Event Broker moves real-time information among applications, AI agents and devices across cloud, on-premises and edge environments. |
Plans
RabbitMQ
- Open-source RabbitMQFree
- Open Source RabbitMQ ServerFree
- Tanzu RabbitMQPriced on request
- VMware Tanzu RabbitMQPriced on request
Solace PubSub+ Event Broker
- Event Broker Software StandardFree
- Solace Cloud Event Broker TrialFree
- Solace Cloud trialFree
- Solace Event Broker Software Free VersionFree
- Event Broker Software EnterprisePriced on request
In their own words
RabbitMQ
RabbitMQ is an open source messaging and streaming broker for application communication, including distributed microservices, real-time data, and IoT. Publishers can route messages to one or more consumers using routing, filtering, streaming, and federation. Message acknowledgements and replication across a cluster support delivery reliability, and delivery guarantees are configurable. Supported protocols include AMQP 0-9-1, AMQP 1.0, MQTT, STOMP, RabbitMQ Streams, HTTP, and WebSocket, including browser communication over WebSocket. Client libraries are available for Java, .NET/C#, Erlang, and other languages; the project also offers a community Docker image and Kubernetes operators. RabbitMQ can run in cloud or on-premises environments, on local machines and physical or virtual hardware, and in containers. Linux, Windows, and macOS are supported; z/OS, most mainframes, and systems with less than 100 MB of RAM are not. The free, self-managed Open Source RabbitMQ Server is offered under the Mozilla Public License 2.0 with best-effort community support. VMware Tanzu RabbitMQ is a commercial offering with 24/7 support and enterprise features; pricing is by contact.
Solace PubSub+ Event Broker
Solace PubSub+ Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. Multiple brokers can form an event mesh to route data across clouds, data centers, and geographies. It is offered as a cloud service, software, or appliance, for deployment in clouds, data centers, and remote locations. Messaging features include exchange patterns, qualities of service, caching, partitioned queues, and replay. Supported protocols include AMQP, Kafka, MQTT, REST, and WebSocket, alongside APIs for programming languages. Solace offers supported micro-integrations for applications, cloud services, and integration tools. Monitoring includes custom dashboards and alerts, and distributed tracing is broker-native and based on OpenTelemetry. Cloud services enable secure protocol ports by default and disable plain-text ports by default. Free options include a 30-day cloud trial and a free enterprise-grade software version. Solace was founded in 2001 and is headquartered in Ottawa, Ontario, Canada.