Is WebSocketからcURLへ変換 free to use?

Yes, WebSocketからcURLへ変換 is completely free. No account, no sign-up, and no hidden fees required.

Is my data safe when using WebSocketからcURLへ変換?

Your data never leaves your device. All processing happens locally in your browser — nothing is uploaded to any server.

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WebSocketからcURLへ変換

WebSocket接続をcURLハンドシェイク、wscat、websocat、JavaScript、またはPythonコードに変換

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WebSocket connection

URL

Headers

Subprotocols (comma-separated)

Initial message (optional)

.sh

curl -i -N 'https://echo.websocket.org' \
  -H 'Connection: Upgrade' \
  -H 'Upgrade: websocket' \
  -H 'Origin: https://echo.websocket.org' \
  -H 'Sec-WebSocket-Version: 13' \
  -H 'Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==' \
  -H 'Authorization: Bearer YOUR_TOKEN'

The cURL output is the raw HTTP Upgrade handshake (RFC 6455). Use it to verify the server returns 101 Switching Protocols. cURL itself doesn't speak the WebSocket frame protocol after the handshake — for that, switch to wscat or websocat.