WebSocket Online Tester
Professional WebSocket online testing and debugging tool supporting ws:// and wss:// protocols, real-time message sending/receiving, JSON formatting and connection status monitoring
Your input will communicate with the configured server to complete the requested action.
Server Configuration
Connection StatusNot connected
Send Settings
Debug Console
No debug messages yet. After connecting to the server and sending messages, all traffic will appear here.
How to Use WebSocket Online Tester
Key Features
- Supports WebSocket (ws://) and WebSocket Secure (wss://) protocols, suitable for both local and production testing.
- Shows connection status in real time (not connected, connecting, connected) and logs system events to the debug console.
- Supports scheduled auto sending to continuously send test messages at a fixed interval.
- Provides JSON decode option to pretty-print JSON messages in multi-line formatted view for better readability.
- Keeps full message history with timestamps and limits maximum number of records to avoid unbounded memory usage.
Quick Start
- Enter your WebSocket server address in the “Server URL” field, such as ws://localhost:8080 or wss://ws.postman-echo.com/raw.
- Click “Connect” and wait until the status becomes “Connected”. Connection results will be logged in the console.
- Type the message to send in the message input box. Both plain text and JSON strings are supported.
- Click “Send Message” or press Ctrl + Enter in the input box to send quickly.
- Enable “JSON decode” to automatically pretty-print JSON messages into multi-line formatted output.
- If you need load testing or heartbeat simulations, enable auto send and configure a proper interval.
Sample Test Servers
- Local testing: ws://localhost:8080 (requires a local WebSocket server).
- Public testing: wss://ws.postman-echo.com/raw (good for quickly validating connection and messaging over HTTPS).