cURL Builder & Converter
Build cURL commands visually or convert existing cURL to JavaScript fetch and Python requests.
Nothing to show yet…What is the cURL Builder?
A visual form that lets you build cURL commands by filling in URL, method, headers, query parameters, body, and auth — no memorising flags. You can also paste an existing cURL command to convert it into JavaScript fetch or Python requests code instantly.
How to use it
1. In Build mode, enter a URL, pick an HTTP method, add headers and query params, then copy the generated cURL command. 2. In Import mode, paste any cURL command and the tool parses it into equivalent JavaScript fetch and Python requests snippets. 3. Every conversion runs in your browser — nothing is sent to a server.
What is cURL?
cURL (Client URL) is a command-line tool for transferring data using URLs. It supports HTTP, HTTPS, FTP, and dozens of other protocols. Developers use it daily to test APIs, debug webhooks, download files, and automate HTTP requests in shell scripts. The curl command ships with macOS, most Linux distributions, and Windows 10+.
Export formats
When you import a cURL command, the tool generates equivalent code in two formats: • JavaScript fetch — uses the native Fetch API available in all modern browsers and Node 18+. • Python requests — uses the popular requests library, the de-facto standard for HTTP in Python.
