When debugging an API endpoint in Chrome DevTools or Postman, "Copy as cURL" is often the fastest way to extract all headers, request bodies, and authentication cookies. However, manually translating cURL arguments (-H, -d, -X, -u) into frontend JavaScript or backend Node.js code is slow and error-prone.

Mapping cURL Flags to Native Fetch

Native fetch() requires mapping terminal arguments into a structured options object:

  • -X POST → method: 'POST'
  • -H "Authorization: Bearer <token>" → headers: { 'Authorization': '...' }
  • -d '{"key":"value"}' → body: JSON.stringify({ key: 'value' })

Automate Conversion Instantly

Instead of manually writing boilerplate, paste your raw cURL command into the DevUtils cURL to Code Converter to get clean JavaScript fetch, Axios, and Python requests generated client-side in milliseconds.