HiveMQ MQTT
Broker
The trusted enterprise-grade MQTT broker
At the heart of the HiveMQ Connect layer, the MQTT Broker ensures reliable, event-driven messaging between connected devices and enterprise systems. Fully compliant with the MQTT standard and proven in mission-critical use cases, it delivers the resilience and scale for millions of connections and billions of messages.
From spaghetti connections to a reliable backbone

Point-to-point integrations create fragile webs that collapse under industrial scale, adding complexity, risk, and wasted effort. HiveMQ Broker replaces that mess with a clean, reliable backbone where every device connects once and data flows instantly without loss or fragile code. This scalable, event-driven architecture grows to millions of connections and becomes the foundation for real-time analytics, AI, and autonomous operations.
Why enterprise-grade matters
Not all MQTT brokers are created equal. Some are designed for experiments, hobby projects, or small-scale device messaging. HiveMQ is built for something very different: mission-critical, enterprise-grade operations.
An enterprise-grade MQTT broker is infrastructure you can trust to move data securely and reliably at scale. It guarantees message delivery, provides high availability through clustering, enforces fine-grained security, and scales elastically to millions of devices and billions of messages. This is what makes HiveMQ the foundation for large-scale IoT deployments and real-time, data-driven industrial operations.
HiveMQ Broker key benefits
HiveMQ Broker is the enterprise-grade MQTT backbone for industrial data streaming. It enables reliable, secure, and scalable movement of data between connected devices and enterprise systems. Proven every day in mission-critical production deployments, it forms the foundation of event-driven architectures that power real-time insights, automation, and industrial AI at scale.
Always-on reliability
Secure, compliant data
Proven scalability
Seamless integration
Business impact of an enterprise grade broker
Uptime for mission-critical operations
Scalability to billions of data points without re-architecture
Message loss, even during outages
Working with HiveMQ, the leading MQTT Platform provider, we’ve been able to tailor a solution that will allow us to achieve our goals. We’re looking forward to optimizing our IoT deployment for cost-savings, and ultimately to reach our efficiency and sustainability goals while offering customers a superior and connected travel experience.
Head of Middleware
Air France-KLM Group
HiveMQ Broker typical deployment
HiveMQ Broker, deployed at the plant, HQ, or in the cloud, serves as the central nervous system for industrial IoT—enabling event-driven architecture (EDA) through reliable, secure, and scalable publish/subscribe communication.


Key technical highlights
Dynamic Clustering: HiveMQ enables horizontal scaling by adding or removing broker nodes without downtime. This ensures high availability, load balancing, and resilience.
Standards-Based MQTT: HiveMQ fully supports MQTT 3.1.1 and 5.0, enabling advanced features like session expiry, topic aliases, and shared subscriptions for robust, flexible, and future-proof IoT messaging.
Enterprise-Grade Security: HiveMQ offers TLS encryption, mutual TLS, RBAC, pluggable authentication, and audit logging to ensure secure, compliant, and controlled data exchange across enterprise environments.
Key technical capabilities of HiveMQ Broker
Reliability
Seamless and reliable data communication is essential to building dependable MQTT-based processes, helping businesses optimize operational efficiency, minimize disruptions, and safeguard their reputation for sustained success. The HiveMQ MQTT broker delivers IoT data with enterprise-grade reliability for mission-critical applications.
Zero message loss
- Persistent messaging by storing all messages to disk
- Disk replication and offline message queuing
- True quality of service (QoS) support
Reliable communication
- Automatic throttling if needed, to prevent cluster overload
- Dynamic queuing across clusters to ensure even load distribution
- Messages are retained and stored on disk
No single point of failure
- Masterless cluster architecture
- Zero downtime upgrades with automatic spawning
- Cluster can grow and shrink at runtime without losing availability
Scalability
Scalability ensures that MQTT brokers can handle the increasing number of device connections and messages without latency issues. By adopting the HiveMQ MQTT broker, businesses can scale to millions of connected devices and tens of thousands of messages per second, establishing a robust foundation for long-term growth and success.
Proven benchmarks
- Benchmarked to 200M active clients
- Benchmarked to 1.8B messages/hour
- Real-world scalability with enterprise workloads
Elastic scaling
- Architected with a truly distributed and masterless cluster architecture
- Automatic data balancing across nodes and clusters
- Smart message distribution across cluster nodes
Linear scalability
- Scale from 2 to 100+ nodes with consistent hashing algorithm both vertically and horizontally
- Automatic data and message balancing
- Support for Kubernetes, OpenShift and DC/OS makes it possible to automatically scale HiveMQ
Enterprise grade
The enterprise-ready HiveMQ MQTT broker is designed to handle large-scale deployments and high message volumes. Purpose-built for robust IoT applications, the HiveMQ broker can meet the needs of larger organizations that demand high reliability, security, and management capabilities for their MQTT-based communication infrastructure.
Enterprise-grade security
- Data transport is secured by industry standard TLS connections, secure websockets and state-of-the-art cipher suites
- Support for authentication and authorization includes X.509 certs, username/password, and IP-based authentication
- Security API allows for custom authentication, authorization, and permission logic such as OAuth 2.0 integration
Enterprise interoperability
- Comprehensive set of extensions support seamless data integration with streaming and analytics platforms
- Custom SDK to build tailored extensions to any custom application in any environment
- Any MQTT compliant client library can be used with HiveMQ to integrate to any device and OT system
Deployment flexibility
- Choose HiveMQ Cloud, a fully-managed HiveMQ Platform custom configured for your needs
- HiveMQ self-managed can be deployed on a private, hybrid and public cloud
- HiveMQ self-managed includes pre-built images that can be deployed on private clouds using Kubernetes, OpenShift and DC/OS