Open-source IoT Gateway - integrates devices connected to legacy and third-party systems with ThingsBoard IoT Platform using Modbus, CAN bus, BACnet, BLE, OPC-UA, MQTT, ODBC and REST protocols.
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100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps
- iot-platform
- iot
- energy
- building
Crossbar.io - WAMP application router
Barebone MQTT broker that can run on any stream server, the node way
The fully compliant, embeddable high-performance Go MQTT v5 server for IoT, smarthome, and pubsub
- mqtt
- mqtt-broker
- mqtt-server
- mqtt-smarthome
Automate your life!
- smarthome
- home-automation
- nodejs
- iobroker
IoTSharp is an open-source IoT platform for data collection, processing, visualization, and device management.
- visualization
- iot-platform
- iot-cloud
- iotsharp
HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform
A lightweight, high-performance go mqtt server(v3.0|v3.1.1|v5.0) supporting distributed cluster
Apache Artemis
- java
- apache
- messaging
- broker
Gmqtt is a flexible, high-performance MQTT broker library that fully implements the MQTT protocol V3.x and V5 in golang
- mqtt
- mqtt-broker
- mqtt-protocol
- mqtt-server
Ultra quick message queue and streaming server
- message-queue
- server
- amqp
- background-jobs
Fast and reliable message broker built on top of Kafka.
Build platforms that flexibly mix SQL, batch, and stream processing paradigms
- golang
- event-sourcing
- stream-processing
- brokers
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
A 'resilient' asynchronous MQTT driver. Recovers from WiFi and broker outages.
RedisSMQ: A high-performance Redis message queue for Node.js
- redis
- background-jobs
- brokers
- dead-letter-queue
Get SQL Server notification on record table change
- notification
- notifications
- table
- record
Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.
Open Reality: phone video to AI-queryable 3D scenes. MCP tools for Claude/Codex/Cursor (npm openreality-mcp), the self-hostable broker, and the VGGT-SLAM library, in one repo. BSD-2-Clause.
MQTT-PWN intends to be a one-stop-shop for IoT Broker penetration-testing and security assessment operations.
- python
- mqtt
- mqtt-broker
- mqtt-client
A web interface for MQTT
- mqtt
- mqtt-client
- mqtt-broker
- websockets
🔊Minimalist message bus implementation for internal communication with zero-allocation magic on Emit
- eventbus
- message-bus
- pubsub
- message-broker
MQTT Broker/Bridge on the ESP8266