RabbitMQ vs Solace PubSub+ Event Broker
| RabbitMQ | Solace PubSub+ Event Broker | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, Linux, macOS, self-hosted, Windows | Web |
| Free plan | Yes | Yes |
| Deployment model | hybrid | hybrid |
| Delivery guarantees | configurable | — |
| Dead-letter queues | Yes | — |
| Ordering guarantees | per_queue | — |
| Maximum message size | 16 MB | — |
| Supported protocols | AMQP 0-9-1, AMQP 1.0, MQTT, STOMP, RabbitMQ Streams, HTTP, WebSocket | — |
Both are listed in Best Message Broker Software, Best Message Queue (MQ) Software. On Freedom251, RabbitMQ scores higher on our published basis.