Curl to Code Converter

Convert curl commands to Python, JavaScript, PHP, Go, Java, C#, Ruby, Swift and more

What is Curl Converter?

Curl Converter is a free online tool that transforms curl commands into ready-to-use code in 9 programming languages. Whether you're copying an API request from your browser's DevTools, converting a Postman export, or translating documentation examples into your preferred language — this tool parses the URL, method, headers, data, authentication, and cookies from your curl command and generates clean, idiomatic code instantly.

Instead of manually rewriting curl -X POST -H "Content-Type: application/json" -d '{"key":"value"}' https://api.example.com into Python's requests library or JavaScript's fetch API, paste it here and get production-ready code in one click. The converter handles JSON payloads, form data, multipart uploads, Basic and Bearer authentication, custom headers, and cookies.

No signup, no downloads, no rate limits. Just paste your curl command and copy the converted code. It works entirely in your browser — your commands never leave your machine.

Enter Curl Command

Try sample commands:

Auto-converts as you type

Converted Code

Python

Paste a curl command to convert

Your code will appear here

Supported Programming Languages

This curl converter supports 9 popular programming languages, generating idiomatic code that follows each language's conventions:

Python

Uses the requests library with json= for JSON data

JavaScript

Browser fetch() API with async/await

Node.js

Uses the axios library with async/await

PHP

Uses curl_* functions with curl_setopt_array

Go

Uses net/http standard library

Java

Uses OkHttp library with builder pattern

C#

Uses HttpClient with async/await

Ruby

Uses Net::HTTP standard library

Swift

Uses URLSession with modern Swift

Why I Built This Tool

As a developer who works across multiple languages daily, I found myself constantly converting curl commands by hand. I'd copy a request from Chrome DevTools, then manually translate it into Python for a script, JavaScript for a frontend, or PHP for a WordPress plugin. It was tedious, error-prone, and broke my flow every time.

The existing curl converters online had issues — some didn't handle JSON data properly, others generated code that wouldn't actually run, and many were plastered with ads or required signups. I wanted something that just works: paste a curl command, get clean runnable code, and move on with my day.

So I built this converter with a focus on accuracy and readability. It properly handles JSON payloads (using json= in Python, JSON.stringify() in JavaScript), form-encoded data, authentication headers, and cookies. Everything runs locally in your browser — your API keys and data never leave your machine.

How to Use This Curl Converter

  1. Copy your curl command — from terminal, browser DevTools (Network tab → Copy as cURL), Postman, or API documentation.
  2. Paste it into the input textarea on the left. The tool auto-converts as you type.
  3. Select your target language — click one of the 9 language tabs above the output.
  4. Copy the converted code — click the Copy button or select the code manually.
  5. Adjust if needed — some languages may require installing dependencies like pip install requests or npm install axios.

Common Curl Command Examples

Here are the most frequent curl patterns developers need to convert:

# Simple GET request

curl https://api.example.com/users

# POST with JSON body

curl -X POST https://api.example.com/users \

  -H "Content-Type: application/json" \

  -d '{"name":"John"}'

# With Bearer token

curl -H "Authorization: Bearer TOKEN" \

  https://api.example.com/data

# With Basic auth

curl -u user:pass https://api.example.com

Curl Flags This Tool Handles

This converter parses all the commonly used curl flags and translates them into their language-specific equivalents:

  • -X / --request — HTTP method (GET, POST, PUT, DELETE, PATCH, etc.)
  • -H / --header — Request headers, including Content-Type, Authorization, and custom headers
  • -d / --data / --data-raw — Request body for POST/PUT requests
  • -F / --form — Multipart form data and file uploads
  • -u / --user — Basic authentication (username:password)
  • -b / --cookie — Cookie headers, parsed and included in the request
  • -L / --location — Follow redirects flag
  • -k / --insecure — Skip SSL verification
  • --compressed — Accept compressed responses

Tips for Converting Curl Commands

  • Copy from DevTools — In Chrome/Firefox, open Network tab, right-click a request, and select "Copy as cURL" for the most accurate curl representation.
  • Check Content-Type — If your curl has -H "Content-Type: application/json" but data isn't valid JSON, you may need to adjust the output manually.
  • Watch for shell variables — curl commands with $VAR won't translate directly — replace them with actual values first.
  • File uploads — The @filename syntax is noted as a comment since file handling differs between languages.
  • Verify the output — Always review the generated code for correctness, especially with complex curl commands.

Frequently Asked Questions

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