MyWebUtils: Free Online Dev Tools

WebSocket Tester
Connect to WebSocket servers, send messages, and view received messages.
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Press Shift+Enter for a new line. Empty messages can be sent.

About the WebSocket Tester

What is a WebSocket?

A WebSocket is a communication protocol that provides full-duplex communication channels over a single TCP connection. Unlike traditional HTTP, where the client sends a request and waits for a response, WebSockets allow for persistent, two-way (bi-directional) communication. This means both the client and server can send messages to each other at any time.

Why Use This Tool?

  • Real-Time App Debugging: Ideal for testing applications that require real-time data, such as live chat apps, online gaming, financial trading platforms, or live sports updates.
  • API Testing: Connect to your WebSocket server endpoint, send various messages (JSON, text), and instantly see how the server responds.
  • Learning: Understand the lifecycle of a WebSocket connection—from opening the connection, to sending/receiving messages, and handling closures or errors.