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cURL Converter

Convert common cURL commands to JavaScript fetch or Axios code locally without sending requests.

const response = await fetch("https://api.example.com/v1/users?active=true", {
  method: "POST",
  headers: {
    "Authorization": "Bearer example-token",
    "Content-Type": "application/json"
  },
  body: 
    JSON.stringify({
      "name": "Ada Lovelace",
      "role": "admin"
    }),
});

const data = await response.json();
Ready

Ready to convert a cURL command.

cURL Converter Course

Understand cURL commands, HTTP request parts, and the limits of converting terminal examples into fetch or Axios code.

Course home

About this tool

DevCove cURL Converter turns common copied cURL commands into JavaScript fetch or Axios snippets. It parses method, URL, headers, JSON or text body, query strings, and compressed flags, then shows a readable code sample and request summary. It does not execute the request and does not upload your command.

How to use this tool

Use this converter when you copy a request from browser DevTools, API documentation, Postman, or a terminal and need starter code.

  1. Paste a cURL command into the input. Common -X, -H, -d, --data-raw, --data-binary, --url, and --compressed options are supported.
  2. Click Convert cURL to parse the command into method, URL, headers, body, and notes.
  3. Switch between Fetch and Axios depending on the code style you need.
  4. Review the security note and remove real tokens before sharing generated code.
  5. Copy the output and adapt error handling, response parsing, credentials, and environment-specific settings in your app.

Features

Focused on reliable conversion for common API debugging commands:

  • Converts cURL commands to JavaScript fetch snippets.
  • Converts the same request to Axios configuration snippets.
  • Parses -X / --request methods, -H / --header headers, --url, -d, --data, --data-raw, and --data-binary bodies.
  • Automatically defaults to GET without a body and POST when a body is present.
  • Formats JSON request bodies with JSON.stringify in fetch output and object data in Axios output.
  • Shows parsed method, URL, header count, body type, and --compressed presence.
  • Reports unsupported or ignored options as parser notes instead of pretending full shell compatibility.
  • Runs locally in the browser and never executes the request.

FAQ

Does this tool send the HTTP request?

No. It only parses the cURL text and generates code. Nothing is sent to the target URL or to DevCove servers.

Which cURL options are supported?

The first version supports common API debugging flags: -X, --request, -H, --header, -d, --data, --data-raw, --data-binary, --url, --compressed, and HEAD shortcuts.

Will every shell command convert perfectly?

No. The parser intentionally covers common cURL shapes, not every shell feature. Unsupported flags are listed as notes so you can adjust the generated code manually.

How are JSON bodies handled?

If the body parses as JSON, fetch output wraps it in JSON.stringify and Axios output uses an object-style data value. Non-JSON bodies are preserved as strings.

Is it safe to paste Authorization headers?

The conversion runs locally, but you should still avoid pasting real production tokens on shared machines and remove secrets before sharing generated code.