About WebSocket Tester
WebSocket Tester is a comprehensive tool for testing and debugging WebSocket connections. Whether you're developing real-time applications, testing WebSocket APIs, or debugging connection issues, this tool provides all the features you need.
Key Features
- Real-time Connection Testing: Connect to any WebSocket server and test communication in real-time
- Message History: View all sent and received messages with timestamps and sizes
- Auto-reconnect: Automatically reconnect when connection is lost
- Ping/Pong Support: Keep connections alive with customizable ping intervals
- JSON Support: Format and validate JSON messages automatically
- Connection Metrics: Track connection duration, message counts, and performance
- Export Session Data: Export your entire WebSocket session as JSON for debugging
- Message Copy: Easily copy individual messages to clipboard
Use Cases
- Testing WebSocket server implementations
- Debugging real-time chat applications
- Monitoring WebSocket API responses
- Validating Socket.io connections
- Testing gaming servers and multiplayer connections
- Debugging IoT device communications
- Live trading and financial data stream testing
- Real-time notification system validation
How to Use
- Enter your WebSocket URL (must start with ws:// or wss://)
- Click "Connect" to establish the connection
- Use the message input to send messages to the server
- View incoming and outgoing messages in the history panel
- Enable auto-reconnect for unstable connections
- Enable ping to keep the connection alive
- Export your session data for debugging or documentation
Supported Protocols
- WebSocket (ws://): Standard WebSocket protocol
- Secure WebSocket (wss://): WebSocket over TLS/SSL
- Text Messages: Plain text message support
- JSON Messages: Automatic JSON formatting and validation
Tips & Best Practices
- Always use wss:// (secure WebSocket) in production environments
- Enable auto-reconnect for development and testing
- Use the ping feature to keep long-running connections alive
- Export session data to document API behavior
- Test with the echo server (wss://echo.websocket.org) to verify your setup
- Monitor message sizes to optimize your application's performance
- Use JSON format for structured data communication
Common WebSocket Testing Scenarios
Real-time Chat: Test chat message delivery, typing indicators, and presence updates.
Live Data Feeds: Monitor stock prices, cryptocurrency rates, or sports scores in real-time.
Multiplayer Games: Test game state synchronization and player actions.
IoT Devices: Validate sensor data streams and device control commands.