Head-to-head · MQTT Broker Software

Eclipse Amlen vs Cedalo Pro Mosquitto

Updated Nov 2026
Both researched from official sources
3 checks side by side

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

Cedalo Pro Mosquitto #8 in MQTT Broker Software 8.6/10 14-day trial Free trial✓ 2 of 2 features Visit Cedalo

Eclipse Amlen leads on 1 check, Cedalo Pro Mosquitto on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

Highest scoreEclipse Amlen · 9.0/10
Free planonly Eclipse Amlen
Free trialonly Cedalo Pro Mosquitto
Most featuresCedalo Pro Mosquitto · 2 of 2

Eclipse Amlen scores higher on our rubric for mqtt broker software: 9.0 against 8.6 out of 10; our editors rank them #4 and #8.

Eclipse Amlen offers free plan; Cedalo Pro Mosquitto doesn't.

Eclipse Amlen is the better fit for teams needing MQTT alongside JMS messaging. Cedalo Pro Mosquitto is the better fit for teams managing Mosquitto across production deployments.

Eclipse Amlen fits best
Teams needing MQTT alongside JMS messaging
Cedalo Pro Mosquitto fits best
Teams managing Mosquitto across production deployments

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Show only differences

Feature	Eclipse Amlen 9.0/10 Visit ↗	Cedalo Pro Mosquitto 8.6/10 Visit ↗
At a glance
Editor score	9.0	8.6
Ranking	#4 in MQTT Broker Software	#8 in MQTT Broker Software
Best for	Teams needing MQTT alongside JMS messaging	Teams managing Mosquitto across production deployments
Pricing model	Free	Paid
Starting price	Free plan	€39/mo
Free plan	✓ (best)	—
Free trial	—	14 days
Deployment	Cloud, Self-hosted	Cloud, Self-hosted, Browser extension
Platforms	Web, Linux	Linux, Windows, macOS, Web
Support	Community, Docs	Email · 24/7
Integrations	3 integrations	21+ integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Eclipse Amlen 0/2 · Cedalo Pro Mosquitto 2/2
Retained messages	Not checked yet	✓ (best)
Clustering	Not checked yet	✓ (best)
Specs
Deployment model	Not checked yet	Not checked yet
MQTT versions	Not checked yet	3.1.1, 5.0
Connection limit	Not checked yet	30 connections
Authentication methods	Not checked yet	LDAP, Active Directory, OIDC, OAuth2, RBAC, mTLS, dynamic credentials
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 3.1.1 and MQTT 5.0 with active-passive and active-active clustering Disk-backed queues, audit logs and per-topic access controls support operations Management Center monitoring, REST API and broad identity integrations
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	No free plan; the S cloud plan starts at €39/month billed annually The listed S and M plans are cloud plans; Enterprise has an individual HA setup Its added administration features may be unnecessary for simpler broker needs
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 →	Cedalo Pro Mosquitto extends Eclipse Mosquitto for organizations running IoT and industrial messaging in production. It suits teams that need managed broker administration alongside MQTT 3.1.1 and MQTT 5.0 support, including deployments… Read the review →

E Eclipse AmlenMQTT Broker Software 9.0Free plan
C Cedalo Pro MosquittoMQTT Broker Software 8.614-day trial

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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
Cedalo Pro Mosquitto — where it wins
- Supports MQTT 3.1.1 and MQTT 5.0 with active-passive and active-active clustering
- Disk-backed queues, audit logs and per-topic access controls support operations
- Management Center monitoring, REST API and broad identity integrations
Where it doesn't
- No free plan; the S cloud plan starts at €39/month billed annually
- The listed S and M plans are cloud plans; Enterprise has an individual HA setup
- Its added administration features may be unnecessary for simpler broker needs

Eclipse Amlen9.0/10 · Free plan
An open-source broker combining MQTT delivery options with JMS and extensible protocols.
Visit Eclipse Amlen Full verdict →
Cedalo Pro Mosquitto8.6/10 · 14-day trial
Managed Mosquitto adds clustering, persistent queues and centralized administration.
Visit Cedalo Full verdict →