Kafka and RabbitMQ both move work between services, but they optimize for different operating models.

Kafka favors durable streams

Choose Kafka when consumers need replay, independent offsets, high-throughput append-only logs, and event history that can feed analytics or rebuild projections.

RabbitMQ favors work routing

Choose RabbitMQ when the problem is task distribution, routing, acknowledgements, dead-letter queues, and a smaller operational footprint for classic background jobs.

The practical rule

If teams need to ask what happened last Tuesday and replay it safely, Kafka is usually the better fit. If they need reliable work dispatch with clear failure handling, RabbitMQ is often enough.