Eclipse Mosquitto
Free software for routing messages between connected devices using the MQTT protocol
- Also known as
- eclipse-mosquitto
What is Eclipse Mosquitto?
A message routing system that follows the MQTT standard, enabling publish-subscribe communication between networked applications, with support for multiple protocol versions and built-in client libraries
Eclipse Mosquitto pricing
We don't have Eclipse Mosquitto's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Eclipse Mosquitto does
The capabilities that matter for realtime messaging infra, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Presence
- -
- Message history replay
- -
- Delivery guarantee
- -
- Global edge network
- -
- Scaling model
- -
- Offline reconnect catchup
- -
- Push notification bridge
- -
- Auth model
- -
- Self hostable
- ✓
- Mqtt support
- ✓
- Deployment
- Self host
- Pricing model
- Open source self host
Platform & deployment
Independently observed- CLI
- macOS
- Linux
- Windows
- Self-hosted
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Eclipse Mosquitto FAQ
Common questions about Eclipse Mosquitto, answered from independent, dated evidence.
What is Eclipse Mosquitto?
An open-source server that implements the MQTT protocol to enable message exchange between connected clients and devices using a publish-subscribe pattern. It is indexed under Realtime Messaging Infra.
Source: https://mosquitto.org
Is Eclipse Mosquitto free to use?
Eclipse Mosquitto is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.
Source: https://mosquitto.org
What platforms does Eclipse Mosquitto support?
Eclipse Mosquitto supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://mosquitto.org
Can Eclipse Mosquitto be self-hosted?
Yes. Eclipse Mosquitto can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://mosquitto.org
Eclipse Mosquitto alternatives
Other realtime messaging infra we track, ranked by the same independent score.
- PubNubA cloud-based real-time messaging platform that unifies pub/sub messaging with presence, message history, and serverless functions on a global networkmedium · 61%
- AblyManaged realtime infrastructure for interactive applicationsmedium · 73%
- EMQXmedium · 74%
- Supabase RealtimeReal-time database change notifications via WebSocketslow · 32%
- HiveMQAn enterprise MQTT platform that streams industrial data reliably across cloud, edge, and on-premises infrastructure to enable real-time operational intelligenchigh · 75%
- Pusher ChannelsAPIs for real-time messaging and collaborative features between applicationsmedium · 61%
Compare Eclipse Mosquitto
Side by side against other realtime messaging infra, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Eclipse Mosquitto, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Development activity | 35 | 0.09 | 3.3 | ✓ |
| Capabilities | 46 | 0.06 | 2.9 | ✓ |
| Stars | 76 | 0.03 | 2.0 | ✓ |
| Integrations | 0 | 0.07 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | ✓ |
| Release cadence | 0 | 0.05 | 0.0 | - |
| Security posture | 5 | 0.12 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 12 | mediumsource · 2026-09-07 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 4 items | mediumsource · 2026-09-10 · 60% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Deployment: self-host · Mqtt support: Yes · Pricing model: open-source-self-host · Self hostable: Yes | mediumsource · 2026-10-05 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C | highsource · 2026-10-05 · 90% |
Pricing
Security
| Attribute | Value | Evidence |
|---|---|---|
| Disclosure policy | Yes | mediumsource · 2026-08-19 · 60% |
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Feclipse-mosquitto%2Fmosquitto&per_page=100 · Last 12m: 0 | highsource · 2026-10-05 · 90% |
| Trust center | https://mosquitto.org/blog/2017/05/security-advisory-cve-2017-7650/ | mediumsource · 2026-09-07 · 60% |
Is Eclipse Mosquitto the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Eclipse Mosquitto against the rest of the realtime messaging infra we index, using the same dated evidence weighted your way.
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