All Tools
API DevelopmentPopular

cURL → Fetch Converter

Convert cURL commands to JavaScript Fetch API code instantly. Convert curl to fetch with headers, auth, and JSON body support.

All processing happens in your browser. Your data never leaves your device.

How to Use cURL → Fetch Converter

Use this converter when you need to move an API request from terminal debugging into JavaScript quickly. It is especially useful for developers searching for a way to convert curl to fetch, convert curl to JavaScript fetch, curl to fetch JS, or turn a copied docs snippet into working frontend code.

  1. 1Paste or type your input in the left panel.
  2. 2Click Process or use the keyboard shortcut ⌘↵.
  3. 3View the result in the output panel. Use Copy to copy to clipboard or Download to save as a file.

Best use cases

  • •Convert a curl example from API docs into Fetch code for a React or Next.js app.
  • •Turn a working terminal request into reusable JavaScript for browser-based API testing.
  • •Preserve headers, JSON bodies, auth tokens, and HTTP methods without rewriting them by hand.

This tool processes data locally in your browser. Nothing is sent to external servers.

Examples

Example cURL to Fetch conversion
curl -X POST 'https://api.example.com/users' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer token123' \
  -d '{"name":"Rafi","role":"admin"}'

Why this page matches curl to fetch searches

  • •The converter is built for direct cURL to JavaScript Fetch translation, including curl to fetch JS and convert curl to JavaScript fetch intent, not generic code generation.
  • •It supports the common request parts developers search for most often: headers, data, auth, and HTTP methods.
  • •Because everything runs locally in the browser, you can safely test and convert requests without sending them to another service.

Frequently Asked Questions

What curl flags are supported?

Common flags including -H (headers), -d (data), -X (method), -u (auth), and --data-raw are supported.

Does it handle authentication?

Yes, Basic auth and Bearer token headers are converted correctly.

Can I convert curl to JavaScript fetch code?

Yes. This tool converts curl commands into JavaScript Fetch API code so you can move API requests from the terminal into frontend or Node.js code quickly.

Does this help with curl to JS fetch searches?

Yes. If you searched for curl to JS fetch, curl to fetch JS, or convert curl to JavaScript, this converter is built for that same request translation workflow.

Can I use this for convert curl to JavaScript fetch searches?

Yes. It is designed specifically for convert curl to JavaScript fetch, curl to JavaScript fetch, and convert curl to fetch workflows where developers need runnable Fetch code fast.

Can it convert POST requests?

Yes, POST, PUT, PATCH, DELETE and all HTTP methods are supported.

Does it handle JSON body?

Yes, JSON bodies are properly included in the Fetch options.

Is the output production-ready?

The output is clean Fetch API code ready to use in browser or Node.js.

Related Tools

Fetch → cURL Converter
API Development
API Request Builder
API Development

Related Guides

API Development

Docker Has a REST API: How to Use the Engine API Safely

Many developers use Docker every day without realizing the CLI is speaking to a real HTTP API. This guide explains what it is and how to use it safely.

API Development

Working With Smile Format in JavaScript

Smile can fit into JavaScript workflows, but only when teams treat it as a binary transport concern instead of plain text JSON.

API Development

What the New HTTP QUERY Method Means for API Design

QUERY gives HTTP a safer way to express complex read-only requests with a body. This post explains why that matters now.