Connect to ws:// and wss:// servers, send JSON payloads, and inspect live frame logs.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Type any ws:// or wss:// server endpoint or select an echo preset.
Click Connect to establish a real-time duplex WebSocket connection.
Compose JSON or text payloads, send frames, and inspect live response streams.
Yes, modern browsers natively support secure wss:// TLS connections to remote endpoints.
Zero-egress companion tools in the Developer Tools suite
Format, validate, repair, and minify JSON data instantly.
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Test regex patterns with flags, group captures, and live matches.
Compare text or source code side-by-side with visual diffs.