cURL to Code Converter — Convert cURL to Python, JavaScript, Go Online Free

Why Convert cURL to Code?

cURL is the universal language of HTTP. Every API provider — Stripe, OpenAI, AWS, Twilio — documents their endpoints with cURL examples because it's unambiguous and universally understood. But when you're building an application, you need code in your actual language: Python's requests, JavaScript's fetch, Go's net/http.

Manually translating a cURL command means reading each flag (-H, -d, -X, --data-urlencode), understanding its meaning, and mapping it to the correct function call in your target language. A converter does this in one click.

How to Convert a cURL Command

1. Copy the cURL command from the API documentation
2. Paste it into the converter's input field
3. Select your target language — Python, JavaScript (fetch/axios), Go, PHP, Ruby, Java
4. Copy the generated code and paste it into your project

Example: Stripe API cURL to Python

# Input cURL:
curl https://api.stripe.com/v1/charges \
  -u sk_test_abc123: \
  -d amount=2000 \
  -d currency=usd \
  -d source=tok_visa \
  -d description="My First Test Charge"

# Output Python (requests):
import requests

response = requests.post(
    'https://api.stripe.com/v1/charges',
    auth=('sk_test_abc123', ''),
    data={
        'amount': '2000',
        'currency': 'usd',
        'source': 'tok_visa',
        'description': 'My First Test Charge',
    }
)
print(response.json())

Example: OpenAI API cURL to JavaScript

# Input cURL:
curl https://api.openai.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -d '{"model":"gpt-4o","messages":[{"role":"user","content":"Hello"}]}'

# Output JavaScript (fetch):
const response = await fetch('https://api.openai.com/v1/chat/completions', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': `Bearer ${process.env.OPENAI_API_KEY}`,
  },
  body: JSON.stringify({
    model: 'gpt-4o',
    messages: [{ role: 'user', content: 'Hello' }],
  }),
})
const data = await response.json()

cURL Flags Reference

Understanding the cURL flags helps you verify that the conversion is correct:

• -X POST / -X GET — HTTP method (GET is default)
• -H "Name: Value" — request header
• -d "data" or --data — request body (sets method to POST)
• --data-raw — request body without processing (no @file expansion)
• --json — shorthand for -H "Content-Type: application/json" -d
• -u user:pass — HTTP Basic Authentication
• -b "cookie=value" — send cookies
• -L — follow redirects
• -k / --insecure — skip SSL verification (never use in production)
• -o file — save response to file
• -v — verbose output (shows request/response headers)
• --compressed — request compressed response (adds Accept-Encoding header)

Language-Specific Notes

Python (requests)

The requests library is the standard for Python HTTP. The converter generates code using requests.get(), requests.post(), etc. For async code, the converter can optionally output httpx async syntax.

JavaScript (fetch vs axios)

The converter supports both native fetch (available in Node.js 18+ and all modern browsers) and axios. Use fetch for modern projects without extra dependencies; use axios if you need request interceptors, automatic JSON parsing, or older Node.js support.

Go (net/http)

Go's HTTP client is verbose but explicit. The generated code includes proper error handling and response body reading — patterns that are easy to forget when writing Go HTTP code manually.

Frequently Asked Questions

Is the converter free?

Yes. The DevKits cURL converter is completely free with no usage limits.

Does it support authentication headers?

Yes. Bearer tokens, Basic Auth, API keys in headers, and OAuth headers are all parsed and correctly mapped to the target language's auth mechanisms.

Can it handle multipart form data?

Yes. -F flags (multipart form data) are converted to the correct multipart/form-data request format in each language, including file upload syntax.

What about --data-urlencode?

URL-encoded form data (--data-urlencode) is correctly converted to application/x-www-form-urlencoded request body format.