SocketMaster: WebSocket Tester

by unlein · unlein.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 17 Oct 2026

A robust WebSocket testing client. Connect, send messages, and analyze responses with real-time logs and JSON formatting.

Users

+3 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#183K

#153K among extensions

Version

1.2.0

updated 14 Jan 2026

Users

monthly, 9 months

Latest, 17 Oct 2026: 12 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months

Latest, 17 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About SocketMaster: WebSocket Tester

Description: Streamline your real-time application development with SocketMaster, a robust and lightweight WebSocket client designed for developers by developers. Whether you are building a chat app, a live trading platform, or a real-time notification system, SocketMaster provides the essential tools you need to debug and test your connections efficiently. Stop guessing what’s happening on your sockets. Visualize your data, format your JSON, and track connectivity with ease. Key Features: - Instant Connectivity: Connect to any ws:// or wss:// endpoint in seconds. - Real-Time Logging: View incoming and outgoing messages in a clean, time-stamped log. - JSON Formatting: Automatically pretty-print JSON payloads for easy readability and debugging. - Message History: Keep track of your session data without cluttering your browser console. - Connection Status: Clear visual indicators for Connected, Disconnected, and Error states. Perfect for frontend and backend developers working with Node.js, Python, Go, or .NET WebSocket implementations. Developed with care by Unlein®