ToolbitWebSocket Tester and Client
Connect to a ws:// or wss:// endpoint, send test frames, and see everything that comes back with timestamps — without wiring up a scratch client first.
What the WebSocket Tester does
- Connects to both ws:// and wss:// endpoints.
- Timestamped log of every frame sent and received.
- Send plain text or JSON payloads with formatting.
- Connection state, close codes, and error reasons surfaced clearly.
How to use it
- Enter the WebSocket URL and connect.
- Send a message and watch the frame log.
- Read close codes and errors when the connection drops.
Why it runs locally
Toolbit has no backend. The WebSocket Tester is implemented with standard browser APIs, so your input is processed in the tab and never uploaded, logged, or retained. That is what makes it safe to paste real data into — and it is also why the tool keeps working with the network disconnected, once you have installed Toolbit as an app.
Frequently asked questions
- Can I connect to a ws:// endpoint from an https page?
- Browsers block insecure WebSocket connections from secure pages. Use wss://, or run Toolbit's desktop app or a local build for plain ws:// testing.
- Are my messages logged anywhere?
- No. The frame log lives in your tab and disappears when you close it.
- Does it support custom headers?
- The browser WebSocket API does not allow custom headers on the handshake; pass authentication via the URL or the first message instead.