cURL to Fetch Converter
Convert cURL commands to JavaScript Fetch API code instantly with proper error handling, JSON support, and authentication. Perfect for API integration, web development, and code migration with comprehensive parsing and format conversion.
Complete Guide: cURL to Fetch Converter
Everything you need to know about using this tool effectively
The Curl to Fetch Converter transforms curl command-line requests into equivalent JavaScript fetch() API calls. It parses the curl command, extracts the URL, HTTP method, headers, and body, and generates a fetch() call with the same parameters. All processing happens in the browser.
This tool uses a curl parser to extract the URL, method (-X), headers (-H), data (-d), and other options from a curl command. It maps these to a fetch() call with the corresponding options object.
Migrating API calls to JavaScript
Convert curl commands from API documentation to fetch() calls for use in frontend code.
Testing API endpoints in browser
Convert a curl command to fetch() for testing in the browser console.
Building client SDKs
Convert curl examples to JavaScript code for client library documentation.
Learning the fetch API
See how curl options map to fetch() parameters for educational purposes.
Paste a curl command
Enter a curl command in the input area.
Convert
Click Convert. The tool generates the equivalent fetch() code.
Copy the code
Copy the JavaScript code for use in your project.
The tool supports -X for method, -H for headers, and -d for data.
JSON data is automatically parsed and stringified in the fetch body.
Review the output to ensure headers and body match your expectations.
For complex curl commands, some options may need manual adjustment.
What curl options are supported?
-X (method), -H (headers), -d (data/body), --data, --header, and the URL. Unsupported options are flagged in the error message.
Is my data sent to a server?
No. All parsing and conversion happens in your browser. Nothing is transmitted.
Can it handle multipart form data?
The tool handles JSON and URL-encoded form data. Multipart form data requires manual adjustment.
What HTTP methods are supported?
GET, POST, PUT, DELETE, and PATCH.
Does it generate async/await code?
Yes. The output uses the modern async/await syntax with fetch().
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