LavinMQ, an open-source message broker written in Crystal
Hi HN. I'm Carl, creator of LavinMQ. LavinMQ is an open-source message broker. AMQP 0-9-1, MQTT, HTTP and streaming. Single binary, minimal resource use. If you know RabbitMQ, it's that (but running on a fraction of hardware). We're the team behind CloudAMQP where we've hosted RabbitMQ for 14 years. Sometimes customers hit issues we couldn't fully explain / work around. So we built our own broker, in order to provide solutions where we previously couldn't (which is much easier when you control the full stack). It all started by me building an open-source AMQP proxy to handle short-lived…
LavinMQ, an open-source message broker written in Crystal launched on April 28, 2026 with 16 votes, #1,052 of 21,248 launches that month and more than 90% of that year's launches.
In plain words
LavinMQ is an open-source message broker written in Crystal that supports AMQP 0-9-1, MQTT, HTTP, and streaming protocols. Built by the CloudAMQP team with 14 years of RabbitMQ hosting experience, it runs as a single binary with minimal resource consumption compared to RabbitMQ. It is designed for developers and teams needing message brokering infrastructure with lower hardware requirements, offering reliable disk storage, acknowledgment handling, and replication capabilities.
written from the facts on this page · September 2026
From the sources
Ultra quick message queue and streaming server. Contribute to cloudamqp/lavinmq development by creating an account on GitHub.
In the maker’s words, at launch
Hi HN. I'm Carl, creator of LavinMQ. LavinMQ is an open-source message broker. AMQP 0-9-1, MQTT, HTTP and streaming. Single binary, minimal resource use. If you know RabbitMQ, it's that (but running on a fraction of hardware). We're the team behind CloudAMQP where we've hosted RabbitMQ for 14 years. Sometimes…
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