MQTTAnalyzer

Monitor and debug your MQTT broker from iPhone, iPad, or Mac.
MQTTAnalyzer is the essential tool for smart home enthusiasts, IoT developers, and anyone working with MQTT-based systems.

Free, open source, and no ads.

CONNECT WITH CONFIDENCE
• MQTT 3.1.1 and MQTT 5.0 support
• MQTT and WebSocket connections
• SSL/TLS with ALPN and server CA certificate validation
• Username/password and client certificate authentication
• Support for self-signed certificates
• Predefined settings for AWS IoT
• Connection diagnostics to identify issues quickly

VISUALIZE YOUR DATA
• Hierarchical topic tree view
• JSON highlighting and pretty-printing
• Time series charts for numeric values
• ANSI color code rendering
• Image viewer with pinch-to-zoom (PNG, JPEG, GIF, WebP, and more)
• Hex viewer for binary payloads

STAY ORGANIZED
• Connect to multiple brokers simultaneously
• Subscribe to multiple topics per broker
• Full-text search across topics and messages
• Unread message indicators
• Statistics panel with message counts
• Large payload support (10MB+) with export

PUBLISH AND CONTROL
• Publish messages with QoS and retain flag
• JSON message builder with form interface
• Delete retained messages from broker
• Siri shortcuts for quick actions

SYNC ACROSS DEVICES
• iCloud sync for settings and certificates
• Native experience on iPhone, iPad, and Mac

Have feedback or feature requests? Visit our GitHub page — MQTTAnalyzer is open source and community-driven.