WebSocket Tester

Connection Test

Establish WebSocket connections directly in your browser to send and receive text messages.

Disconnected

Message Exchange

No messages yet

Test WebSocket online, see immediately if connection works or fails.

Port Checker

Subnet Calculator

User-Agent Parser

Unix Timestamp Converter

Time Tools

Cache-Control Parser

Use Cases

When real-time API won't connect, first test if WS/WSS address can establish connection normally
Debug real-time message push, chat, or notification feature message send/receive flow
Troubleshoot frequent WebSocket disconnections or timeout issues by viewing SYSTEM logs
Verify wss:// encrypted connection compatibility in HTTPS environments

Features

See handshake success or failure directly: First check if address, protocol, and service status have issues
Message send/receive verifiable on-site: Response content, push format, and disconnect situations all directly observable
Higher frequency for real-time API debugging: IM, notifications, market data, and collaboration systems all testable directly
Logs easier to review: Message direction and time order clear, convenient for problem reproduction

How to Use

1.Enter WebSocket address (starting with ws:// or wss://)
2.Click connect button and wait for handshake completion showing Connected status
3.Send test content in message input box, view response messages returned by server
4.View complete records of sent, received, and system events by timestamp in message log

FAQ

How to quickly test if a WebSocket address is available?

Enter WS or WSS address to attempt connection, then manually send messages and observe responses. Especially suitable for locating address errors, handshake failures, and response anomalies.

Is it suitable for real-time API debugging and message testing?

Yes. Especially for real-time scenarios like chat, notifications, subscription pushes, and consoles, testing directly in browser is more efficient.

Can I manually send messages and view returned content?

Yes. This is more suitable for verifying message format, server response, and connection status changes.

Why are WebSocket problems hard to troubleshoot?

Because they involve handshake, protocol, proxy, certificate, and message format stages. Using a tester helps faster determine if the problem is in the connection stage or message stage.