Extract and convert HTTP Archive (.har) logs to cURL, Fetch, and Python.
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.
Drop your exported DevTools .har file or paste the JSON text.
Filter through captured HTTP requests and select your target endpoint.
Switch between cURL, JavaScript Fetch, and Python Requests code formats.
Open Developer Tools (F12) -> Network tab -> Right-click any request -> 'Save all as HAR with content'.
Zero-egress companion tools in the Unit & Code Converters suite
Convert metric and imperial units across 8 measurement categories with live matrix.
Encode plain text to Base64 or decode Base64 back to text.
Convert pixels to rem and em values with custom base font size.
