WebSocket Tester

What this tool does

WebSocket Tester is a browser-based debugging tool for testing realtime WebSocket servers without writing custom client scripts. You can connect to `ws://` or `wss://` endpoints, send text or JSON messages, and inspect incoming responses in a clear timeline. Each log entry includes timestamp, direction, and message payload so it is easy to verify request/response behavior during development. JSON mode validates outgoing payloads before sending, which helps catch malformed messages early. The tool is useful when testing chat backends, event streams, trading feeds, telemetry channels, collaboration systems, or any API that depends on persistent socket connections. It also handles common connection states such as connecting, connected, disconnected, and error, so developers can quickly identify whether issues come from payload format or transport-level connectivity. Since this runs fully in the browser, it is convenient for quick diagnostics and demo workflows. Use it to iterate on message contracts, confirm server behavior, and reproduce websocket integration bugs before moving to deeper application-level debugging.

When developers use this tool

A fast in-browser socket client helps developers validate realtime message flows and troubleshoot connection behavior quickly.

Developers typically use WebSocket Tester for workflows such as Test websocket echo endpoints and custom message protocols, Debug JSON payload format issues before app integration, Inspect realtime server responses with timestamped logs. It is especially useful when you need to When developing or debugging websocket APIs, When validating realtime message contracts with backend teams, When checking transport connectivity separately from frontend app code without leaving the browser.