Java Companion

Nov 23, 2025 · Backend Development

A Minimalist Web‑Based API Debugger That Could Replace Postman

WebCurl is an open‑source, ultra‑lightweight web API testing tool that runs entirely in the browser without any installation, offering a minimalist design, zero third‑party dependencies, and a rich set of features such as HTTP CONNECT tunneling, custom headers, file upload/download, echo server, static file serving, and flexible command‑line options.