Apache Pulsar vs VerneMQ
Apache Pulsar
pulsar.apache.orgVerneMQ
vernemq.comSide by side
| Figure | Apache Pulsar | VerneMQ |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Message Queue (MQ) Software | 8.1 (#12) | 7.3 (#24) |
| Deployment | Pulsar can run in Docker or Kubernetes, and the project offers a Helm chart for Kubernetes deployment. | VerneMQ is built for Linux and also runs on Mac OS X; the download page says Windows is not currently supported due to LevelDB code. |
| Integrations | Built-in connectors import and export data for systems including Kafka, RabbitMQ, MySQL, PostgreSQL, MongoDB, Cassandra, and Elasticsearch. | Listed integrations and interfaces include bridges, WebSockets, Graphite, Prometheus, Lua scripting, webhooks, and an HTTP Administration API. |
Plans
In their own words
Apache Pulsar
Apache Pulsar is a free, open-source distributed messaging and streaming platform built for cloud use. It supports message consumption with less than 10 ms latency and up to one million unique topics in a cluster. Configurable replication across geographic regions and automatic client failover to healthy clusters support multi-region deployments. Tenants and policies control access to data and actions, and can isolate brokers to limit noisy-neighbor effects. Maintained client libraries are available for Java, Go, Python, C++, Node.js, and C#. Built-in connectors move data to and from systems including Kafka, RabbitMQ, MySQL, PostgreSQL, MongoDB, Cassandra, and Elasticsearch. Pulsar Functions process messages with user-defined logic in Java, Python, or Go. Tiered storage can offload data from BookKeeper to blob storage such as S3 for unlimited retention. It can run in Docker or Kubernetes, with a Helm chart for Kubernetes. Encryption, authentication, and authorization are available but are not enabled by default. The 5.0.0-M2 milestone is for early testing and feedback, not production use.