mock-server / mockserver-monorepo

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

apache / activemq

Apache ActiveMQ

moquette-io / moquette

Java MQTT lightweight broker

openremote / core

100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps

hivemq / hivemq-community-edition

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

apache / artemis

Apache Artemis

apache / bifromq

Apache BifroMQ (Incubating) is a high-performance, distributed MQTT broker that natively supports multi-tenancy. It is designed to enable the building of large-scale IoT device connectivity and messaging systems.

thingsboard / tbmq

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.

Cloeille / picsou-finance

Self-hosted personal finance dashboard Track bank accounts, brokerage, crypto, and net worth — all in one place.