State
Closed
Browser WebSocket connections cannot send arbitrary custom headers. Use query params for auth tokens if needed.
Browser WebSocket connections cannot send arbitrary custom headers. Use query params for auth tokens if needed.
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Mini tour
Paste or load the websocket input you want to work with.
Configure the few options that matter for your current debugging task.
Review the result, then copy, share, or continue iterating in the browser.
WebSocket Tester is a browser-based websocket tester built for developers, QA engineers, and DevOps teams who need quick results during debugging and release work.
It helps reduce context switching during api tools workflows by keeping formatting, validation, comparison, or conversion tasks inside a single lightweight browser experience.
WebSocket Tester is useful when you need a fast browser-based step inside an API, QA, or DevOps workflow without switching to a local script or desktop utility.
Teams typically use this api tools workflow during payload debugging, CI checks, incident triage, configuration review, and regression validation.
Connect to WebSocket endpoints, send messages, and inspect live frame logs in real time.
Accepted input
Accepts API endpoints, request payloads, headers, schemas, or captured responses depending on the tool. Large bodies stay in your browser unless the tool explicitly sends a request to the endpoint you provide.
How to use
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