What is a cURL converter online?

A cURL converter online parses a cURL terminal command and converts it into equivalent JavaScript fetch(), Axios, or other HTTP library code — saving you time when working with API documentation.

How do I convert cURL to JavaScript?

Paste your cURL command into ZeroApiTools' free cURL to JavaScript converter and get the equivalent fetch() or Axios code instantly. No signup, no upload.

What cURL flags are supported?

The converter supports -X (method), -H (headers), -d/--data (body), --user (Basic Auth), -b (cookies), and most common cURL options used in API testing.

Is my API data safe when using this converter?

Yes. The conversion happens entirely in your browser using JavaScript. Your cURL commands, headers, and API keys never leave your device.

cURL → Fetch Converter — Free Online Tool (2026)

Use cURL → Fetch Converter for free — convert curl commands to js fetch() or axios. This tool runs 100% in your browser with zero server uploads. Part of ZeroApiTools, a collection of 65+ free developer tools. No signup, no API keys, no data collection. Works offline.

ZeroApiTools' free cURL Converter Online instantly transforms cURL commands into JavaScript `fetch()` or Axios code — perfect for API testing and frontend development. Paste your cURL, get clean JS code, zero signup, zero data upload.

What is a cURL Converter?

A cURL Converter is a developer tool that parses a cURL terminal command — including headers, method, body, and authentication — and converts it into the equivalent code for JavaScript fetch, Axios, Python requests, or other HTTP libraries.

How to Use the cURL Converter on ZeroApiTools?

Copy your cURL command from Postman, Chrome DevTools (right-click network request → "Copy as cURL"), or API documentation.
Paste it into the cURL input panel on the left.
Copy the output JavaScript `fetch()` or Axios code from the right panel and paste it directly into your project.

Is the cURL to JavaScript converter free to use?

Yes, 100% free. The conversion happens entirely in your browser — no API calls, no server, no signup needed.

What cURL options does the converter support?

The converter handles `-X` (method), `-H` (headers), `-d` / `--data` (request body), `--user` (Basic Auth), `-u`, and most common cURL flags used for API testing.