cURL Converter

What is a cURL converter?

A cURL converter turns a curl command — the format every API doc, Postman export, and AI assistant emits — into ready-to-paste code for your real programming language. Headers, query strings, JSON bodies, multipart uploads, basic auth, and cookies all carry over, so you don't have to translate the request by hand.

curl is the universal way to describe an HTTP request, but you rarely *run* curl in production. You run JavaScript fetch, Python requests, Go's net/http, or whatever your stack uses. This tool bridges that gap: paste the curl, click a tab, copy the code.

Everything runs locally in your browser. Your curl command, headers, and tokens never leave your machine — useful when you're pasting commands that include real bearer tokens or session cookies.

What you'll learn while converting

• Curl flags map to specific concepts in every HTTP client: -H is a request header, -d is a body, -X is the method, -u is basic auth, -F is a multipart form field.
• If curl sees a body (-d, --data, -F) and no -X, it defaults to POST — the same default most clients use, so an unspecified -X still becomes POST in the output.
• JSON bodies are different from form bodies. Content-Type: application/json means the body is sent literally; application/x-www-form-urlencoded means key/value pairs are joined with &.

How to convert curl to code step by step

1. 1

   Paste your curl command

   Drop the full command — including \ line continuations from copy-pasted docs — into the input box. The parser normalizes smart quotes and PowerShell prompt markers automatically.

2. 2

   Pick the target language

   Tabs cover JavaScript fetch, TypeScript, Node axios, Python requests, Python httpx, Go, PHP, Ruby, Java HttpClient, C# HttpClient, HTTPie, and PowerShell. Switching tabs is free — the parse runs once.

3. 3

   Inspect the parsed request

   Open the *Parsed request* panel to confirm the method, URL, headers, body kind, and any options like insecure or follow redirects came across the way you expected.

4. 4

   Copy and adjust auth

   Copy the generated code into your project. If the curl included a bearer token or cookie, swap the literal value for an environment variable before committing.

cURL flags quick reference

The flags this converter understands and what they map to in generated code.

cURL conversion examples

curl 'https://api.example.com/v1/lessons?limit=20&track=python' \  -H 'Authorization: Bearer eyJhbGciOiJIUzI1NiJ9.demo'

const response = await fetch('https://api.example.com/v1/lessons?limit=20&track=python', {  method: 'GET',  headers: {    'Authorization': 'Bearer eyJhbGciOiJIUzI1NiJ9.demo'  }});const data = await response.json();

curl 'https://api.example.com/v1/users' \  -H 'Content-Type: application/json' \  --data-raw '{"name":"Ada","age":36}'

import requests
headers = {    'Content-Type': 'application/json',}json_data = {"name":"Ada","age":36}
response = requests.post('https://api.example.com/v1/users', headers=headers, json=json_data)response.raise_for_status()

curl 'https://api.example.com/upload' \  -F 'caption=Hello' \  -F 'photo=@./avatar.jpg'

import requests
files = {    'caption': (None, 'Hello'),    'photo': open('./avatar.jpg', 'rb'),}
response = requests.post('https://api.example.com/upload', files=files)response.raise_for_status()

curl 'https://api.example.com/me' \  -u alice:s3cret \  -b 'session=2f9a; theme=dark'

const response = await fetch('https://api.example.com/me', {  method: 'GET',  headers: {    'Authorization': 'Basic YWxpY2U6czNjcmV0',    'Cookie': 'session=2f9a; theme=dark'  }});

Common mistakes when converting curl

• Pasting curl with smart quotes (', ', ", ") from a blog post — they look like quotes but break shell parsing. The converter normalizes them, but copy the original command if you can.
• Leaving -k (--insecure) in production. It disables TLS certificate verification — fine for local dev, dangerous in real traffic.
• Forgetting that --data-raw and --data behave differently — --data URL-encodes the input. Use --data-raw for JSON bodies that include @ or &.

cURL Converter FAQ