Is my cURL command or API key sent to a server?

No. Parsing and code generation happen entirely in your browser, so bearer tokens and credentials in the command never leave your machine.

Does it handle multi-line commands?

Yes. Backslash line continuations copied straight out of a terminal or devtools are joined before parsing, and both single and double quoted arguments are handled.

Why is a flag missing from the output?

Flags that only affect the transport — redirects, TLS verification, compression, verbosity — have no one-to-one mapping in requests, fetch or net/http, so they are skipped instead of producing misleading code.

Can I convert file uploads?

Multipart uploads via -F are not converted yet. Use -d with a raw body, or build the multipart form manually in the target language.

Can I convert cURL to JSON?

Yes, in effect. When the Content-Type header is application/json, the converter extracts the -d body as parsed JSON and every -H header into a plain object, so the generated code shows the JSON payload and headers as native structures you can copy out on their own.

Developer & API

cURL Converter: Convert cURL to Python, JavaScript & Go

Turn any cURL command into Python, JavaScript or Go.

cURL command

POST https://api.example.com/v1/messages · 2 headers · body

import requests

url = "https://api.example.com/v1/messages"
headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer sk-test-123",
}
payload = {
    "model": "gpt-4o-mini",
    "stream": False
}

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

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cURL to JSON

The converter reads every -H header into an object and, when the Content-Type is JSON, parses the -d body as JSON. This is the exact output it produces for the command below.

curl -X POST https://api.example.com/v1/users \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-test-123" \
  -d '{"name":"Ada","role":"admin","active":true}'

{
  "method": "POST",
  "url": "https://api.example.com/v1/users",
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer sk-test-123"
  },
  "body": {
    "name": "Ada",
    "role": "admin",
    "active": true
  }
}

cURL flags and how they convert

Flag	Meaning	Converted to
-X, --request	HTTP method	method (defaults to GET, or POST when a body is present)
-H, --header	Request header	headers object, one key per header
-d, --data-raw	Request body	JSON payload when Content-Type is JSON, otherwise raw string
-u, --user	Basic auth user:password	Authorization: Basic <base64> header
-F, --form	Multipart form field	Not converted yet — rewrite as a multipart upload in your client

About this tool

Copy as cURL is the fastest way to capture a request from your browser devtools, but it is not code you can ship. This converter tokenizes the command exactly like a shell would — respecting quotes, escapes and line continuations — then rebuilds it as idiomatic Python requests, JavaScript fetch or Go net/http. Everything runs locally, so tokens in your Authorization header never leave the page.

How to convert cURL to Python

In Chrome or Firefox devtools, right-click a request in the Network tab and choose Copy → Copy as cURL. Paste it here and pick Python: you get a requests call with a headers dict and, when the content type is JSON, a parsed payload passed via json= so the body is re-encoded correctly.

Which cURL flags are supported

-X/--request, -H/--header, -d/--data (plus --data-raw and --data-binary), -u/--user for basic auth and --url are all parsed. Transport-only flags such as -L, -k, -s and --compressed are ignored because they have no direct equivalent in the generated client code.

Method and body inference

If no explicit method is given, the converter follows cURL's own rule: a request with a body becomes POST, everything else stays GET. JSON bodies are detected from the Content-Type header and converted to native structures — Python dicts with True/False/None, and a JSON string body for fetch and Go.

How to use cURL Converter

1
Copy the request as cURL
In your browser's DevTools Network tab, right-click the request and choose Copy → Copy as cURL.
2
Paste the command
Multi-line commands with \ continuations are fine — the parser handles them like a shell would.
3
Pick a language
Choose Python requests, JavaScript fetch or Go net/http.
4
Check and copy the code
Confirm the method and headers look right, then copy the generated code into your project.

Best practices

Work from a real payload, not a hand-typed sample — encoding bugs hide in whitespace and Unicode.
Keep the transformation reproducible: script it in CI once you have confirmed the output here.
Never paste live credentials, customer records or production tokens into any web tool you have not audited.
Version the inputs and outputs you rely on so a teammate can reproduce the same result later.

cURL Converter — Why it matters

Small integration details — an encoding, a claim, a header — are where most API bugs actually live, and they are expensive to find in production logs.

Getting them right in seconds keeps debugging sessions short and prevents malformed data from reaching downstream systems.

Related free & paid tools

Tool name	Type	Key features	Link
curlconverter	Free	Open-source cURL → 30+ language converter	Visit
PostmanOffer	Freemium	Import cURL, then export runnable client code	Visit
Insomnia	Freemium	Desktop API client with cURL import/export	Visit
HTTPie	Freemium	Human-friendly CLI and desktop HTTP client	Visit

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