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EMQ

EMQ — Scalable MQTT broker (EMQX) for IoT deployments with millions of concurrent connections and rule engine.

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Our Verdict

The most scalable open-source MQTT broker, provided you have the ops muscle or pay for managed.

Pros

  • Scales to millions of MQTT clients
  • Powerful rule engine
  • Open-source core is legit

Cons

  • Operating clusters needs real skill
  • Commercial features behind paywall
  • Docs dense for newcomers
Best for: Large IoT deployments needing massive MQTT fan-out and rules Not for: Small projects where Mosquitto or a managed broker is simpler

When to Use EMQ

Good fit if you need

  • Scaling MQTT broker to 10M+ concurrent IoT connections
  • Rule engine routing MQTT events to Kafka or databases
  • EMQX cluster for industrial IoT and smart factory messaging
  • Managed MQTT-as-a-service for device fleet communication
  • Replacing HiveMQ or Mosquitto with highly scalable EMQX

Lock-in Assessment

Low 5/5
Lock-in Score
5/5

EMQ Pricing

Pricing Model
freemium
Free Tier
Yes
Entry Price
Enterprise Available
No
Transparency Score

Beta — estimates may differ from actual pricing

1,000
1001K10K100K1M

Estimated Monthly Cost

$25

Estimated Annual Cost

$300

Estimates are approximate and may not reflect current pricing. Always check the official pricing page.

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