API Request Builder - Generate cURL & Fetch Code Online
Generate cURL commands and JavaScript Fetch snippets from a simple form β build HTTP requests without memorizing syntax
Developer Tools
API Request Builder - Generate cURL & Fetch Code Online
How to Use
1Select the HTTP method (GET, POST, PUT, PATCH, or DELETE)
2Enter the full request URL
3Add any request headers in key: value format, one per line
4For POST/PUT/PATCH requests, paste your JSON request body
5Copy the generated cURL command or Fetch code snippet
Frequently Asked Questions
Add one header per line using the format 'Key: Value'. For example: 'Content-Type: application/json' on one line and 'Authorization: Bearer mytoken' on the next. Lines without a colon are ignored.
No. The request body is only included for POST, PUT, and PATCH requests. GET and DELETE requests do not include a body in the generated output, following standard HTTP conventions.
This tool generates code only β it does not send any HTTP requests itself. Copy the generated cURL command and run it in your terminal, or copy the Fetch snippet into your browser's DevTools console or a JavaScript project.
Yes β add an Authorization header (e.g. 'Authorization: Bearer YOUR_TOKEN' or 'Authorization: Basic base64credentials') in the headers field. The value will be included in both the cURL and Fetch outputs.