Simplify API Calls with the cURL to Fetch Converter

Found the perfect API endpoint in the documentation, but the example is written in a long, messy cURL command? Translating headers, data payloads, and HTTP methods manually into JavaScript is prone to typos. Streamline your API integration with our automatic cURL to Fetch Converter.

What is the cURL to Fetch Converter?

This converter is a massive time-saver for frontend and Node.js developers. It takes a standard terminal cURL command—often found in API documentation (like Stripe, Twilio, or GitHub)—and translates it into native JavaScript fetch() code. It automatically parses the URL, headers, authorization tokens, and request body, generating clean, ready-to-run JavaScript.

Step-by-Step Guide: How to Use It

1. Copy cURL Command: Copy the full cURL command from your API documentation or browser network tab (Right-click request -> Copy -> Copy as cURL).
2. Paste into Converter: Paste the command into the tool’s input text area.
3. Instant Translation: The tool will instantly parse the command and output the equivalent JavaScript fetch() syntax.
4. Copy Code: Copy the generated JS code and paste it directly into your frontend or Node.js application.

Practical Use Cases

• API Documentation Integration: Quickly turn bash examples from API docs into usable JavaScript functions for your React, Vue, or vanilla JS web app.
• Debugging Network Requests: Replicate a failing network request from your browser. Copy it as cURL from the DevTools, convert it to fetch, and test it in your IDE.
• Node.js Scripting: Easily move from testing APIs in the terminal to writing automated scripts or backend services in Node.js using the built-in fetch API.

Frequently Asked Questions

• Does this support Async/Await? Yes, our converter generates modern JavaScript using standard fetch() syntax, which can easily be wrapped in an async function using await for cleaner asynchronous code.
• How does it handle POST data? The tool parses the --data or -d flags from the cURL command and formats them correctly as the ‘body’ property in the fetch options, automatically handling JSON stringification if needed.
• Can I use this in Node.js? Yes! Node.js natively supports the fetch API (from v18 onwards). The generated code will work perfectly in both modern web browsers and recent Node.js environments.