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Moquette vs NATS

Both stand on message broker software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Moquette

Free plan AndroidAPILinux+2

Moquette provides a free, embeddable MQTT broker with broad protocol and access-control features. Its documented unsupported MQTT 5 functions and lack of cluster design matter when planning production architecture.

Visit Moquette

NATS

Free plan APILinuxSelf-hosted

Choose NATS if you need open-source messaging for distributed services and want pub/sub, request/reply, and persistent streaming in one system. Its documented clients and connectors offer options across many languages and tools; teams seeking an app outside the listed API, Linux, and self-hosted platforms should look elsewhere.

Visit NATS

The facts

MoquetteNATS
Free planYesYes
Open sourceNot publishedNot published
Runs onAndroid, API, Linux, Self-hosted, WindowsAPI, Linux, Self-hosted
Lowest paid planNot publishedFree or on request
Plans publishedNone1
MakerNot publishedNot published
Websitemoquette-io.github.ionats.io
On message broker software#28 of 39#24 of 39

Moquette: what it does well

  • Free under Apache-2.0 license
  • MQTT 3 and MQTT 5 support
  • QoS 0, 1, and 2
  • Embeddable in other applications
  • SSL, authentication, and topic ACLs

What to know first

  • Several MQTT 5 features are unsupported
  • Not designed for clusterizable deployments
  • Requires self-hosted setup and administration

NATS: what it does well

  • Supports pub/sub, request/reply, and persistent streaming through JetStream.
  • Combines queueing, key-value functions, streaming, and object storage.
  • Single binary has no external dependencies.
  • Typically uses less than 20 MB of RAM.
  • Documents authentication, authorization, TLS, and isolated accounts.

What to know first

  • It is a messaging system for teams building distributed systems.
  • The server is listed for Linux and self-hosted environments, alongside an API platform.

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