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Tools/dev/WebSocket & SSE Live Stream Inspector

WebSocket & SSE Live Stream Inspector

100% Air-GappedShortcut: W

Interactive client-side testbed for WebSocket and Server-Sent Events APIs. Connect to any WS/WSS or SSE endpoint directly from your browser, transmit JSON and text frames, measure roundtrip ping latency, stream color-coded frames, and export session logs.

disconnected
Echo Endpoints:

No WebSocket traffic captured yet.

Connect to an endpoint to inspect live frame streams.

Frame Composer
Press ⌘+Enter to send
Architectural Guide & Specs

Format, inspect, and explore with WebSocket & SSE Live Stream Inspector

Air-Gapped Local Computation

Interactive client-side testbed for WebSocket (ws/wss) and Server-Sent Events (SSE). Connect directly in-browser, stream frames, measure roundtrip ping latency, and dispatch JSON or text payloads.

Bidirectional Frame Inspector

Color-coded incoming and outgoing message log with timestamping, payload searching, and 1-click JSON export.

Heartbeat Ping Generator

Automated 5-second ping interval to keep persistent connections active and measure roundtrip network latency.

Execution Environment:Client-Side V8 / WebAssembly
Network Ingress/Egress:Zero (100% Air-Gapped)
Local Persistence:IndexedDB / LocalStorage
PWA Offline Ready:Fully Supported
Developer Workflows

Common Production Use Cases

Networking01

Real-Time Microservice Debugging

Test WebSockets and SSE streams during local development without launching heavyweight desktop clients.

Client-Side Verified
Gotchas & Mechanics

Frequently Asked Questions

No. Connections originate directly from your browser engine using standard native WebSocket and EventSource APIs.
Ecosystem Companions

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