Apache RocketMQ vs ZeroMQ
Apache RocketMQ
rocketmq.apache.orgZeroMQ
zeromq.orgSide by side
| Figure | Apache RocketMQ | ZeroMQ |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Message Broker Software | 8.9 (#4) | 7.4 (#31) |
| Spec score · Message Queue (MQ) Software | 8.8 (#4) | 7.4 (#22) |
| Documentation | The documentation includes concepts, quick start, deployment, best practices, SDK references, security guidance, FAQs and release notes. | The ZeroMQ Guide covers use of ØMQ with more than 60 diagrams and 750 examples in 28 languages. |
| Messaging patterns | The platform supports publish/subscribe, request/reply and continuous event-streaming patterns. | It supports patterns including publish-subscribe, request-reply, and client-server. |
| Security | RocketMQ provides ACL and TLS, but operators must configure ACL or restrict access to trusted networks; the security guide warns that ACL is not enabled by default. | The listed libzmq and many language bindings support PLAIN and CURVE mechanisms. |
Plans
Apache RocketMQ
- Apache RocketMQFree
- Apache RocketMQ open-source distributionFree
In their own words
Apache RocketMQ
Apache RocketMQ is distributed middleware for asynchronous communication and publish/subscribe messaging. Its asynchronous model can separate systems and shift loads between upstream and downstream services. Messaging options include publish/subscribe, request/reply, streaming, transactional messages, FIFO ordering, filtering, and push or pull consumption. The project lists durable persistence, replication, failover, fault tolerance, high-availability options, and cross-region disaster recovery. Its site describes million-level LiteTopics per cluster and says RocketMQ has demonstrated 10M+ TPS throughput. It can run locally, in Docker, or Kubernetes, with source and binary packages available. The ecosystem includes EventBridge, MQTT, RocketMQ Connect, RocketMQ Streams, Spring, Flink, Prometheus Exporter, and a Kubernetes Operator; AI options include native MCP support, A2A compatibility, and integrations with LangChain, CrewAI, AutoGen, AgentScope, Dify, and Coze. The project lists gRPC SDKs for Java, Go, Python, C++, and Rust, plus gRPC, MQTT, JMS, and OpenMessaging protocols. It is free under Apache License 2.0. ACL is not enabled by default.
ZeroMQ
ZeroMQ is a free, open-source asynchronous messaging library for developers building distributed or concurrent applications. A system using it can run without a dedicated broker, with patterns such as publish-subscribe, request-reply and client-server. It carries messages over transports including TCP, in-process and inter-process communication, multicast and WebSocket. The project lists language bindings and libraries for C, C++, C#, Dart, Erlang, F#, Go, Haskell, Java, Node.js, Perl, Python, Ruby, Rust and Zig. Supported protocols also include ZMTP, UDP, IPC, PGM, NORM and TIPC, and delivery guarantees are configurable. The project says libzmq and many bindings support PLAIN and CURVE security mechanisms. libzmq is licensed under MPL-2.0; the project says closed-source commercial applications do not need a separate commercial license. Installation guidance covers macOS, Linux distributions and Windows. One documented constraint affects Go’s zmq4 wrapper: it requires ZeroMQ and development files to be installed and cannot be cross-compiled. ZeroMQ is self-hosted and listed at free.