Free cURL to Fetch Converter
for JavaScript.
Convert cURL commands to JavaScript fetch code instantly with this free online cURL to Fetch converter. No accounts. No uploads. No telemetry.
Paste your cURL command
Generated fetch code
const response = await fetch("https://api.example.com/users", {
method: "POST",
headers: {
"Content-Type": "application/json",
"Authorization": "Bearer YOUR_TOKEN"
},
body: `{"name":"Karlo","role":"admin"}`
});
const data = await response.json();Supported
-X(HTTP method)-H(headers)-d/--data(request body)--data-urlencode--url--get-u(basic auth)-b(cookies)-F/--form(multipart form fields)
Automatically handled
- JSON request bodies
- Automatic
Content-Type: application/jsondetection - URL-encoded query strings from
--data-urlencodewith--get - Generated
const data = await response.json();
Not supported yet
- File uploads using
@file - Advanced multipart options
--cert--proxy- Complex authentication flows
Free online cURL to Fetch converter
This tool works as a cURL to JavaScript converter, a cURL to fetch generator, and a quick way to turn API curl commands into browser-ready fetch requests.
This tool converts curl commands into JavaScript fetch() requests using the Fetch API. The generated code works in the browser, React, Next.js or Node.js environments.
Developers often copy curl commands from API documentation, Postman, Insomnia or terminal requests. This converter transforms those commands into ready-to-use fetch requests for React, Next.js, Node.js or any JavaScript environment.
It supports headers, JSON request bodies, cookies, URL encoded parameters, multipart form fields and automatic detection of JSON content types.
Example
curl https://jsonplaceholder.typicode.com/usersPaste this cURL command into the converter above to instantly generate the equivalent JavaScript fetch request.
Convert curl commands to JavaScript fetch
Use this converter to quickly turn curl commands into JavaScript Fetch API requests for the browser, React, Next.js, or Node.js.
Common use cases
- Convert curl commands from Postman into JavaScript fetch code
- Turn API documentation curl examples into browser requests
- Convert terminal HTTP requests into Fetch API calls
- Debug API requests directly in JavaScript environments
How it works
The converter parses the cURL command, detects the request URL, headers, method and body, then generates equivalent fetch() code.
It also handles common developer cases such as JSON request bodies, URL-encoded parameters, cookies, basic authentication and simple multipart form fields.
Unsupported or browser-incompatible options are surfaced as warnings so you can quickly spot anything that may require manual adjustment.
How to convert a cURL command from Postman to JavaScript Fetch
Use this converter to quickly turn cURL commands copied from Postman, API documentation, or terminal requests into JavaScript Fetch API code.
This is useful when you need to move an API request from Postman into a browser app, React component, Next.js route, or Node.js script.
FAQ
What is a cURL to Fetch converter?
A cURL to Fetch converter transforms a curl command into JavaScript fetch code that you can use in the browser, React, Next.js, or other JavaScript projects.
Is this cURL to Fetch tool safe?
Yes. The conversion runs entirely in your browser and your commands are not uploaded.
Does it support headers and JSON bodies?
Yes. The tool supports common curl flags such as headers, request bodies, cookies, URL encoded data, and simple multipart form fields.
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