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WebSocket Tester

Connect to a WebSocket endpoint, send messages, and watch a live log of frames and connection state.

Connection

Idle

0 sent · 0 received

Subprotocols (optional):

Message

Send with

⌘

/

Ctrl

+

Enter

17 bytes

Connect to a socket to enable sending.

Event Log

0

No events yet.

Connect to a WebSocket and send a message to see frames here.

Sent
0

0 B

Received
0

0 B

State
Idle

ready

Frames are exchanged directly between your browser and the endpoint you enter — nothing is proxied or stored. Insecure ws:// endpoints are blocked when this page is served over HTTPS (browser mixed-content policy). Learn more about the WebSocket API.