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MQTTAnalyzer

MQTTAnalyzer

IoT diagnostics

23 ratings
47 reviews
🔧 Utilities
🛠️ Developer Tools
Free

Details

Released
January 7, 2020
Updated
August 23, 2026

Features

Developer

Philipp Arndt
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About

Monitor and debug MQTT brokers on your Apple devices. Visualize data with hierarchical views, JSON highlighting, and charts. Publish messages, manage multiple brokers, and sync settings across devices. Free and open source.

✓MQTT 3.1.1 and 5.0 support
✓JSON highlighting and pretty-printing
✓Time series charts for numeric values
✓Connect to multiple brokers
✓Full-text search
✓Publish messages
✓iCloud sync
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What's New in MQTTAnalyzer

3.5.0

August 23, 2026

What's New in 3.5.0 • Flat view for the topic tree on macOS and iPad — see every topic with its full path in one list (#240) • Export or copy a topic subtree as YAML or JSON, including binary payloads • Expand, collapse and navigate the topic tree with the arrow keys on macOS • Much faster topic list with large topic trees — scrolling, searching and navigating thousands of topics • Fix: macOS shows the messages of the tree root itself again (#243) • Fix: "Allow untrusted" and custom CA certificates are now honoured for secure WebSocket (wss) connections (#244)

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User reviews

Most RecentHighest RatedLowest Rated

Works Great

Really nice tool for MQTT Monitoring. One thing which would be nice, when an unread message would be marked somehow in the list where the content shows. Currently you see n unread messages but you do not see which ones.
MMadFisi

Confusing

The new UI is confusing
Ggameplace123

Response from developer

Thanks for the feedback. Can you tell me more on GitHub? Would be interesting what confuses you!

Funciona muito bem

Funciona muito bem. Poderia ter opção de criar um Dashboard
LLeonardoDamelio

Response from developer

Thank you 😊

Ok’ish

Spends a lot of time fitting when you publish something… when this happens you have to kill it.
CWcolly wobbles

Good support

I originally had an issue with self signed certificates but the developer addressed it quickly
Ddutchman19806

Response from developer

Thank you for the feedback. Can you please try the latest update, released today?

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FAQ

What devices does MQTTAnalyzer support?

MQTTAnalyzer is available on iPhone, iPad, and Mac. It offers a native experience across all supported Apple devices.

Is MQTTAnalyzer free to use?

Yes, MQTTAnalyzer is completely free and open source. It does not include any advertisements.

What MQTT versions does MQTTAnalyzer support?

MQTTAnalyzer supports both MQTT 3.1.1 and MQTT 5.0 protocols. It also supports MQTT and WebSocket connections.

Can I connect to multiple MQTT brokers with MQTTAnalyzer?

Yes, you can connect to multiple brokers simultaneously. The app also allows subscribing to multiple topics per broker.

How does MQTTAnalyzer handle large message payloads?

MQTTAnalyzer supports large payloads up to 10MB and allows for exporting them. It also includes a hex viewer for binary data.

Does MQTTAnalyzer offer any data visualization features?

Yes, MQTTAnalyzer provides a hierarchical topic tree view, JSON highlighting, time series charts for numeric values, and an image viewer.

How often is MQTTAnalyzer updated?

The latest version, 3.2.0, was last updated on March 24, 2026. As an open-source project, updates are driven by community contributions.

What authentication methods does MQTTAnalyzer support for connections?

MQTTAnalyzer supports username/password and client certificate authentication, including self-signed certificates. It also offers SSL/TLS with ALPN and server CA certificate validation.