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Automation Integration · head to head

Grouparoo vs Eclipse Mosquitto

Grouparoo logo

Grouparoo

Automation Integration

The open-source data sync platform

From
Free
Rated
-
Full reviewWebsite
Eclipse Mosquitto logo

Eclipse Mosquitto

Networking

Small, EPL-licensed MQTT broker that runs on hardware other brokers cannot

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Grouparoo enterprise Cloud tier pricing not disclosed; requires contacting sales; Eclipse Mosquitto there is no clustering: Mosquitto is a single process, so high availability means building your own failover and accepting session loss on switchover.
  • They diverge on capability: Grouparoo covers Data syncing, Eclipse Mosquitto covers MQTT 5.0 support.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Grouparoo and Eclipse Mosquitto actually diverge.

Attributes where Grouparoo and Eclipse Mosquitto differ
AttributeGrouparooEclipse Mosquitto
Pricing modelusage-basedOpen source, no licence fee
PlatformsWeb, Self-hostedLinux, Windows, macOS, Docker
CategoryAutomation IntegrationNetworking
Founded2020Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Grouparoo

  • Data syncing
  • Audience building
  • Real-time activation
  • Data transformation
  • Error handling
  • Monitoring
  • Scheduling
  • 100+ integrations

Only in Eclipse Mosquitto

  • MQTT 5.0 support
  • Very small footprint
  • Bridging
  • WebSockets listener
  • Command line clients
  • Dynamic security plugin

What people use each for

The jobs each tool is most often brought in to do.

Grouparoo

  • Customer data synchronization across platformsnot Eclipse Mosquitto
  • CDP (Customer Data Platform) integration and data activationnot Eclipse Mosquitto

Eclipse Mosquitto

  • A home or building automation stack where the broker must run on the same small computer as everything elsenot Grouparoo
  • An industrial gateway that buffers local telemetry and bridges selected topics to a cloud brokernot Grouparoo
  • Local development and testing of MQTT clients without provisioning a cloud IoT servicenot Grouparoo
  • An air-gapped deployment where a broker with no licence server and no phone-home behaviour is a requirementnot Grouparoo

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Grouparoo

  • Enterprise Cloud tier pricing not disclosed; requires contacting sales
  • Charges based on synced records, not unique destinations or integration count

Eclipse Mosquitto

  • There is no clustering: Mosquitto is a single process, so high availability means building your own failover and accepting session loss on switchover.
  • Persistence is a local file rather than a replicated store, so a disk failure or an unclean shutdown can lose retained messages and queued QoS traffic.
  • Practical capacity is a few thousand concurrent clients on typical hardware, so a growing device fleet eventually forces a migration to a clustered broker.
  • The Eclipse Public Licence is weak copyleft rather than permissive, which some legal teams treat as a blocker when embedding the broker in a shipped commercial product.
  • There is no commercial support to buy from the project, so production incidents rely on community mailing lists or on paying a third party who happens to know the codebase.

Pricing, plan by plan

Grouparoo

Free
  • Community EditionFree
    • Open-source, self-hosted
    • Optional enterprise UI add-on: $100/month
  • Standard Cloud$150/month
    • 100K records synced/month
    • Usage-based model with tiered pricing
  • Standard Cloud$300/month
    • 300K records synced/month
  • Standard Cloud$600/month
    • 1,000,000 records synced/month

Eclipse Mosquitto

Free
  • Eclipse MosquittoFree
    • Eclipse Public License 2.0 with Eclipse Distribution Licence
    • MQTT 5.0, 3.1.1 and 3.1
    • No client or message limits beyond your hardware

Which should you pick?

Choose Grouparoo if

  • You need data syncing.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want audience building.
Grouparoo review

Choose Eclipse Mosquitto if

  • You need mqtt 5.0 support.
  • You want to start without paying.
  • You work on Linux, Windows, macOS, Docker.
  • You also want very small footprint.
Eclipse Mosquitto review

Questions people ask

Is Grouparoo or Eclipse Mosquitto better?
Neither clearly leads. Grouparoo starts at Free and Eclipse Mosquitto at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Grouparoo or Eclipse Mosquitto?
Grouparoo starts at Free and Eclipse Mosquitto at Free.
Does Grouparoo or Eclipse Mosquitto run on more platforms?
Grouparoo runs on Web, Self-hosted. Eclipse Mosquitto runs on Linux, Windows, macOS, Docker.
Can I use Grouparoo for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grouparoo best used for?
Grouparoo is most often used for customer data synchronization across platforms, cdp (customer data platform) integration and data activation. Of those, customer data synchronization across platforms and cdp (customer data platform) integration and data activation are not what Eclipse Mosquitto is typically brought in for.
What can Grouparoo do that Eclipse Mosquitto cannot?
Grouparoo covers Data syncing, Audience building, Real-time activation, Data transformation. Eclipse Mosquitto covers MQTT 5.0 support, Very small footprint, Bridging, WebSockets listener.

Answered from the vendors’ own pages

Grouparoo: Does Grouparoo have a free version?

Yes. Grouparoo Community Edition is free and open-source with self-hosted deployment. An optional enterprise UI add-on is available at $100/month.

Source
Eclipse Mosquitto: Can Mosquitto be clustered?

No. It is a single process. High availability requires an external failover arrangement you build yourself.

Grouparoo: How much does Grouparoo Standard Cloud cost?

Grouparoo Standard Cloud uses usage-based pricing: $150/month for 100K records synced, $300/month for 300K records, and $600/month for 1 million records synced monthly.

Source
Eclipse Mosquitto: What licence is it?

Eclipse Public License 2.0 alongside the Eclipse Distribution License, a weak copyleft rather than a permissive licence.

Grouparoo: What does 'synced records' mean in Grouparoo pricing?

Each Record sent to a Destination counts as one synced Record in Grouparoo's usage calculation, regardless of how many destinations that record is sent to. Users can monitor usage through their dashboard.

Source
Eclipse Mosquitto: How many clients can it handle?

A few thousand concurrent connections on ordinary hardware; beyond that, use a clustered broker.

Grouparoo: Can I use multiple integrations with Grouparoo?

Yes. All Grouparoo tiers include unlimited integrations. You can connect as many Sources and Destinations as needed without additional fees.

Source
Eclipse Mosquitto: Does it support MQTT 5?

Yes, along with 3.1.1 and 3.1.

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