Debug WebSocket traffic in real-time. Decode binary/text frames and inspect protocol handshake headers.
Default echo server: echo.websocket.events (the old echo.websocket.org endpoint is retired).
A WebSocket frame viewer helps inspect WebSocket message frames, including their direction, payload, and type. It is useful for diagnosing real-time application communication.
Paste or load frame data, select a frame, and examine its payload and metadata. Compare inbound and outbound frames when tracing a conversation.
Do not expose production credentials, cookies, or private message payloads when sharing WebSocket diagnostics.
Parsers and viewers interpret the supplied source format. Confirm that the input is complete and in the expected format, then compare extracted fields with the original before acting on them. Use the input and option fields shown above, and distinguish editable source values from read-only result areas.
Treat calculated or parsed performance values as diagnostic evidence. Compare like-for-like measurements and validate suspected issues with browser or field data.