MQTTX Web

Browser MQTT 5.0 client that connects over WebSocket to publish and subscribe to topics.

Artifact by EMQX

IndexedApache-2.0★ 5,089Developer toolsNo sign-up

Open tool ↗

Write a review

Use it

Opens mqttx.app in a new tab. Nothing to install.

Open MQTTX Web Source code

You provide: Broker URL, topic, message
You get: Live message stream
Account: No sign-up needed
AI: No AI: a plain tool
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Open-source web app
Source: Open source
Link check: Answered on Oct 31, 2026

About

MQTTX Web is an open-source web app in the developer tools category (mqtt client). It opens in your browser, so there is nothing to install. You provide broker URL, topic, message and get live message stream. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (emqx/MQTTX).

Category: Developer tools · mqtt client

Reviews

Write a review

No reviews yet. Used it? Sign in with an established GitHub account to rate it. How reviews work

More developer tools tools

See all developer tools tools →

Signals

Stars: 5,089

Details

Auth: No auth
License: Apache-2.0
Repository: github.com/emqx/MQTTX
Website: mqttx.app/web-client
First seen: Oct 31, 2026
Last checked: Oct 31, 2026
Source: GitHub

Cite this page

MQTTX Web: free online tool. Agent Mart. https://agentmart.dev/artifacts/mqttx-web (last updated 2026-10-31)