Example input and settings
{"message":"hello"}Developer · DEV-43Submit an issue
WebSocket tester
Connect to WS or WSS servers, view live server messages, and send plain text or JSON messages to debug/test WebSocket services.
WS / WSS · Text and JSON messagesServer messages and connection log
Connect to a server to see incoming messages here.
Keeps the latest 500 entries. Displays up to 20,000 characters per entry; outgoing messages are not truncated.
Message to send
Send plain text or JSON exactly as entered after connecting. Ctrl / ⌘ + Enter also sends.
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Test WebSocket connections and messages
Enter your server URL and press Enter or Connect. Read incoming messages and connection logs on the left, compose and send messages on the right, then disconnect when finished.
Check the input format and options with this example before using your own data. Random values, file sizes and presentation vary with the input and settings.
What to check in the result
{"type":"reply","message":"hello","serverTime":"2026-10-07T00:00:01.000Z","count":2}