MQTTapp - Access MQTT Broker

Bertram Vielsack

MQTTapp - Access MQTT Broker app icon
5,000+Free
ToolsEveryoneVersion 1.6.0Updated 5/11/2026, 10:30:58 AM
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MQTTapp: An Intuitive MQTT Client

MQTTapp is designed to help users connect to MQTT brokers and use MQTT efficiently. Whether for professional or personal use, it provides a set of practical features to simplify your MQTT experience.

Key Features:

- Hierarchical Topic Display -
Organize topics and messages in a clear hierarchical structure.
Expand topics to view subtopics and recently received messages.

- Detailed Message View -
View current and previous messages with formatted JSON data for improved readability.

- Account Management -
Add and manage accounts seamlessly. Start or stop connections using simple controls.

- Demo Account -
Test the app without a broker.
This account allows you to explore features available in the Pro version and is automatically removed once you create a regular account.

- TCP and WebSocket connections -
Supports both TCP and WebSocket connections with optional base path to enable flexible connection to MQTT brokers.

- Secure connections -
Choose between SSL-encrypted or unencrypted connections, with the option to disable SSL validation.

- Random or custom client IDs -
Use random IDs to avoid conflicts or specify them as needed.

- Message filtering -
Filter messages or receive system messages by using topic filter $SYS/#.

- Scalable User Interface -
Adjust the app's display size from 50% to 200% for better usability.

- Search Function -
Find terms quickly with the integrated search bar.

- Display server certificates for SSL accounts -

- Save and share messages as JSON files

Pro Version Features:

The Pro version includes additional features for advanced use:
- Publish and delete messages
- Organize topics across multiple accounts in favorites, with current values and charts in favorites
- Filter topics and messages when searching
- Split view in overview and favorites
- Visualize numerical data as charts
- Receive messages when the app is running in the background
- Use custom certificates to validate SSL connections
- Authentication with SSL client certificates
- Import messages from JSON files

MQTTapp offers a range of essential features for managing MQTT connections and messages. Upgrade to the Pro version to unlock more advanced functionalities tailored to your needs.
Developer email
bertram@vielsack.com
Current version
1.6.0
Android version
6.0

Screenshots

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