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cURL to Fetch & Axios Converter

Convert cURL terminal commands into clean, ready-to-use JavaScript fetch, TypeScript, Axios, or Python requests code instantly in your browser.

Last updated July 1, 2026
Input cURL CommandTerminal String
Target Code:
// Paste a valid cURL command above to convert...

Why Convert cURL Commands to Application Code?

API documentation from platforms like Stripe, OpenAI, GitHub, and AWS predominantly provides request examples as cURL command-line scripts. While cURL is ideal for rapid terminal testing, backend developers and frontend engineers must convert those command flags, headers, basic auth credentials, and JSON payloads into application code.

Manually copying request headers, escaping JSON body strings, and formatting bearer tokens into native JavaScript fetch() or Python requests options is error-prone. DevToolHub's cURL Converter handles tokenization and code generation 100% locally in your browser.

Supported cURL Flags & Syntax Mapping

The parser interprets standard cURL command flags and maps them directly to client library options:

cURL FlagDescriptionJS Fetch TargetPython Requests Target
-X / --requestHTTP verb (GET, POST, PUT, DELETE)method: 'POST'requests.post(...)
-H / --headerHTTP request headersheaders: { ... }headers = { ... }
-d / --data / --data-rawHTTP request body payloadbody: JSON.stringify(...)json={ ... } / data=...
-u / --userBasic Authentication (user:pass)Authorization: 'Basic ...'auth=('user', 'pass')
-A / --user-agentCustom User-Agent headerheaders['User-Agent']headers['User-Agent']

Code Conversion Examples

1. Input cURL Command

curl -X POST "https://api.example.com/v1/data" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"name": "DevToolHub", "active": true}'

2. Converted JavaScript (Fetch API)

async function sendRequest() {
  const response = await fetch("https://api.example.com/v1/data", {
    method: "POST",
    headers: {
      "Authorization": "Bearer YOUR_API_TOKEN",
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      name: "DevToolHub",
      active: true
    })
  });
  const data = await response.json();
  return data;
}

3. Converted Python (`requests`)

import requests

url = "https://api.example.com/v1/data"
headers = {
    "Authorization": "Bearer YOUR_API_TOKEN",
    "Content-Type": "application/json"
}
payload = {
    "name": "DevToolHub",
    "active": True
}

response = requests.post(url, headers=headers, json=payload)
print(response.json())

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