cURL to Code

Convert cURL commands to JavaScript fetch, Python requests, or PHP cURL code

cURL to Code

Convert cURL commands to executable code in JavaScript, Python, or PHP. Automatically extracts HTTP method, URL, headers, body, and authentication.

Overview

The cURL to Code tool parses cURL command-line syntax and generates equivalent code for:

• JavaScript (fetch API)
• Python (requests library)
• PHP (curl extension)

Supports multiline commands (with backslash continuations), quoted arguments, and common cURL flags.

Use Cases

API exploration

Copy a cURL request from browser DevTools and convert it to working code for your project

Documentation samples

Generate code examples in multiple languages from a single cURL command

Testing & debugging

Quickly reproduce API requests in your language of choice

Migration

Convert legacy cURL scripts to modern HTTP client code

Supported cURL Flags

Method & URL

• -X, --request — HTTP method (GET, POST, PUT, DELETE, etc.)
• First non-flag argument — URL

Headers & body

• -H, --header — HTTP headers (e.g., Content-Type: application/json)
• -d, --data, --data-raw, --data-binary — Request body (implies POST if method not set)

Authentication

• -u, --user — Basic authentication (username:password)

Input Format

Paste a cURL command. The tool handles:

• Single-line or multiline (backslash-continued) commands
• Single or double-quoted arguments
• Optional curl prefix

Example

curl -X POST https://api.example.com/users \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer token123' \
  -d '{"name":"Alice","email":"[e-mail]"}'

Output Formats

JavaScript (fetch)

Generates fetch() calls with method, headers, and body.

const response = await fetch("https://api.example.com/users", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": "Bearer token123",
  },
  body: '{"name":"Alice","email":"[e-mail]"}',
});
const data = await response.json();

Python (requests)

Generates requests.post() (or .get(), .put(), etc.) with headers, data, and optional auth tuple.

import requests

headers = {
  "Content-Type": "application/json",
  "Authorization": "Bearer token123"
}

data = '{"name":"Alice","email":"[e-mail]"}'

response = requests.post("https://api.example.com/users", headers=headers, data=data)
print(response.json())

PHP (cURL)

Generates curl_setopt() calls for method, URL, headers, body, and authentication.

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.example.com/users");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Content-Type: application/json",
    "Authorization: Bearer token123"
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, '{"name":"Alice","email":"[e-mail]"}');
$response = curl_exec($ch);
curl_close($ch);
$data = json_decode($response, true);
?>

Implementation Details

The tool tokenizes the input command, respecting shell quoting rules:

1. Split on whitespace, preserving quoted strings
2. Extract method, URL, headers, body, and auth from flags
3. Generate idiomatic code for each target language

Source: lib/tools/curl-to-code.ts:64-124

The parser handles basic cURL syntax. Complex shell features (pipes, redirects, environment variables) are not supported.

Keyboard Shortcuts

• Cmd/Ctrl+Enter — Convert to JavaScript (default)
• Cmd/Ctrl+Shift+C — Copy output
• Cmd/Ctrl+Shift+S — Download output

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