CrabMQ is a high-performance, open-source MQTT broker written in Rust, designed for scalability, reliability, and safety. It is a community-driven project maintained by OpenCorex.
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Updated
May 8, 2026 - Go
CrabMQ is a high-performance, open-source MQTT broker written in Rust, designed for scalability, reliability, and safety. It is a community-driven project maintained by OpenCorex.
Local development version of the CarBMQ MQTT broker
CrabMQ Core is a QUIC-based messaging broker implementing QTT (QUIC Telemetry Transport), a modern alternative to MQTT designed for secure, low-latency IoT communication without certificate complexity.
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