MQTTX Web

Your All-in-One MQTT Client Toolbox

Get it on umbrelOS

Version1.13.0

CategoryHome & Automation

Source codePublic

Developed byEMQ 1 app

Submitted bydirstel 6 apps

Compatible withumbrelOS 0.5 or later

MQTTX Web is an open-source MQTT 5.0 WebSocket client on the browser to help you debug your MQTT services and applications faster.

The user interface (UI) of MQTTX adopts a chat-based layout, simplifying operational logic. It enables users to establish multiple MQTT connections, thereby facilitating swift testing of MQTT/MQTTS connections, as well as message subscription and publication.

What's new

Version 1.13.0+3 months ago

Payload inspector and UI refresh update with enhanced functionality:

New features:

Quick copy options for topic, broker, and host information
Topic whitespace detection to warn about leading or trailing spaces
Syntax highlighting for JSON payload display
Support for Protobuf Editions 2023

Improvements:

Refreshed UI with modernized styling and smoother animations
Simplified connection list styling
Redesigned help and about pages

Bug fixes:

Fixed topic input issues causing subscription errors
Fixed topic input and select styling issues
Prevented newlines in topic and alias inputs

Full release notes can be found at https://github.com/emqx/MQTTX/releases/tag/v1.13.0

Version 1.12.1+7 months ago

Enhanced security and stability update with new features:

New features:

SCRAM enhanced authentication support for MQTT 5.0 with SHA-256 and SHA-512
Updated AI models to latest 2025 versions for desktop

Improvements:

Optimized export functionality for better memory efficiency
Improved long host name display and payload history navigation

Bug fixes:

Prevented crash when restoring window on disconnected display
Fixed Windows app data path handling issue
Corrected User Property display in Topics Tree
Updated Linux app icon resolution

Full release notes can be found at https://github.com/emqx/MQTTX/releases/tag/v1.12.1

Version 1.12.0+10 months ago

Major AI-powered upgrade with enhanced desktop experience and improved functionality.

Key features and improvements:

Auto-save and restore window position for seamless experience
Active topic and payload search highlighting for quicker navigation
AI Copilot 2.0 with multi-model support including Gemini 2.5, Claude-4, GPT-4.1, and Azure OpenAI
One-click custom function and schema generation
Native MCP integration with stdio and HTTP SSE server support
Session management with enhanced reasoning capabilities
Random payload generation with customizable size for stress testing
Improved performance with Node 18 runtime and Electron 33

Bug fixes: