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