moquette-io/moquette

Health v2 · maintenance only

Adoption not part of the score

2453 stars · 834 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Moquette is a lightweight MQTT broker written in Java, compliant with MQTT 5 and MQTT 3, supporting QoS 0-2 and most MQTT 5 features. It is built on Netty and designed to be easily embedded in other JVM applications as well as run standalone.

Use cases

• embed an MQTT broker in a Java application
• run a lightweight MQTT broker for IoT devices
• support MQTT 5 features like shared subscriptions and topic aliases
• test MQTT clients locally with QoS 0, 1 and 2
• add pub/sub messaging to a JVM backend

When to choose

• you need an embeddable MQTT broker in a JVM project
• you want a lightweight, self-contained broker without heavy infrastructure
• you need MQTT 5 features such as session expiry, will delay, or shared subscriptions

When to avoid

• you need a horizontally scalable, clustered MQTT broker for massive fleets
• you require full MQTT 5 specification compliance
• you prefer a non-JVM runtime

Facets

service · maturity active

message-queue http-server iot backend developer-tools jvm cross-platform self-hosted mqtt mqtt-broker mqtt5 netty embeddable pubsub messaging

Member repositories

For agents

markdown · JSON · MCP: product_card(name="moquette-io/moquette")