Eclipse Amlen vs Eclipse Mosquitto

EAEclipse Amlen9.0Visit Eclipse Mosquitto8.7Visit

Higher score EA Eclipse Amlen #4 in MQTT Broker Software 9.0/10 Free plan Free plan✓ 0 of 2 features Visit Eclipse Amlen

vs

Eclipse Mosquitto #7 in MQTT Broker Software 8.7/10 Free plan Free plan✓ 0 of 2 features Visit Mosquitto

• Eclipse Amlen fits best

  Teams needing MQTT alongside JMS messaging

• Eclipse Mosquitto fits best

  A straightforward free self-hosted MQTT broker

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Side by side

Feature	EAEclipse Amlen 9.0/10 Visit ↗	Eclipse Mosquitto 8.7/10 Visit ↗
At a glance
Editor score	9.0	8.7
Ranking	#4 in MQTT Broker Software	#7 in MQTT Broker Software
Best for	Teams needing MQTT alongside JMS messaging	A straightforward free self-hosted MQTT broker
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted	Self-hosted
Platforms	Web, Linux	Windows, macOS, Linux
Support	Community, Docs	Community, Docs
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market
Features Eclipse Amlen 0/2 · Eclipse Mosquitto 0/2
Retained messages	Not checked yet	Not checked yet
Clustering	Not checked yet	Not checked yet
Specs
Deployment model	Not checked yet	Not checked yet
MQTT versions	Not checked yet	Not checked yet
Connection limit	Not checked yet	Not checked yet
Authentication methods	Not checked yet	Not checked yet
Our review
Pros	Supports MQTT versions 3 through 5 over TCP/IP and WebSockets Offers at-most-once, at-least-once, and exactly-once delivery Includes JMS support, custom protocol plug-ins, and REST administration	Supports MQTT 5.0, 3.1.1, and 3.1 with QoS 0, 1, and 2 Includes TLS, authentication, and topic access control lists Offers retained messages, durable sessions, bridging, and WebSockets
Cons	Requires teams to deploy and operate the broker themselves Its scope extends beyond MQTT into JMS and point-to-point messaging Support is centered on community resources and documentation	Requires self-hosted deployment and broker administration Support channels are community and documentation No official paid plans for buyers seeking a paid support tier
Our verdict	Eclipse Amlen is an open-source message broker for IoT, mobile, and web workloads. It suits teams that want to host their own messaging service and need MQTT alongside other messaging approaches. MQTT versions 3 through 5 run over TCP/IP… Read the review →	Eclipse Mosquitto is an open-source MQTT message broker for clients, IoT devices, embedded systems, and servers. It suits solo developers and small or mid-market teams that want a free, self-hosted broker with standard MQTT messaging… Read the review →

Strengths and trade-offs

• Eclipse Amlen — where it wins

  • Supports MQTT versions 3 through 5 over TCP/IP and WebSockets
  • Offers at-most-once, at-least-once, and exactly-once delivery
  • Includes JMS support, custom protocol plug-ins, and REST administration

  Where it doesn't

  • Requires teams to deploy and operate the broker themselves
  • Its scope extends beyond MQTT into JMS and point-to-point messaging
  • Support is centered on community resources and documentation

• Eclipse Mosquitto — where it wins

  • Supports MQTT 5.0, 3.1.1, and 3.1 with QoS 0, 1, and 2
  • Includes TLS, authentication, and topic access control lists
  • Offers retained messages, durable sessions, bridging, and WebSockets

  Where it doesn't

  • Requires self-hosted deployment and broker administration
  • Support channels are community and documentation
  • No official paid plans for buyers seeking a paid support tier

• EAEclipse Amlen9.0/10 · Free plan

  An open-source broker combining MQTT delivery options with JMS and extensible protocols.

  Visit Eclipse AmlenFull verdict →
• Eclipse Mosquitto8.7/10 · Free plan

  A free, self-hosted MQTT broker with core messaging, security, and bridging features.

  Visit MosquittoFull verdict →