Compose HTTP requests (GET, POST, PUT, DELETE), test endpoints, inspect headers, and export code.
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.
Choose your HTTP method (GET, POST, PUT, DELETE) and enter the target API endpoint URL.
Add query parameters, custom headers, and Bearer or Basic authentication tokens.
Click Send Request to view response JSON, status codes, headers, and export code snippets.
No. All HTTP requests are executed directly from your browser runtime via the native Fetch API. No sensitive tokens or payloads ever touch an intermediate server.
Browsers enforce Cross-Origin Resource Sharing (CORS) security. If a remote API server does not send 'Access-Control-Allow-Origin: *', your browser will block the response. Switch to the 'Code Export' tab to run the exact cURL command in your terminal.
Yes! Switch to the 'Code Export' tab in the response panel to copy one-click snippets in JavaScript Fetch, Axios, cURL, and Python requests.
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