cURL to Code Converter

Convert cURL commands into executable HTTP client code for 8 programming languages - instantly, with no AI required.

Access: /tools/developers/curl-to-code

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Overview

cURL to Code parses your cURL commands and generates equivalent HTTP client code. This is a pure client-side tool with no AI - it uses a custom cURL parser for fast, consistent results.

Key features:

• 8 output languages - JavaScript, Python, Go, PHP, Ruby, Java, C#, Rust
• Full cURL support - Headers, body, auth, cookies, and more
• Multiple frameworks - fetch, axios, requests, Guzzle, etc.
• Error handling included - Try/catch patterns where applicable
• Instant conversion - No API calls, works offline

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Supported Languages & Frameworks

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How to Use

1. Paste cURL - Enter your cURL command
2. Select language - Choose from 8 options
3. Select framework - Pick HTTP client library
4. Click Convert - Instant code generation
5. Copy code - One-click copy to clipboard

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Example Input

curl -X POST 'https://api.example.com/users' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer token123' \
  -H 'X-Request-ID: abc-123' \
  -d '{"name": "John Doe", "email": "john@example.com", "role": "admin"}'

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Output Examples

JavaScript (fetch)

const response = await fetch('https://api.example.com/users', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer token123',
    'X-Request-ID': 'abc-123'
  },
  body: JSON.stringify({
    name: 'John Doe',
    email: 'john@example.com',
    role: 'admin'
  })
});

const data = await response.json();
console.log(data);

JavaScript (axios)

import axios from 'axios';

const response = await axios.post('https://api.example.com/users', {
  name: 'John Doe',
  email: 'john@example.com',
  role: 'admin'
}, {
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer token123',
    'X-Request-ID': 'abc-123'
  }
});

console.log(response.data);

Python (requests)

import requests

response = requests.post(
    'https://api.example.com/users',
    headers={
        'Content-Type': 'application/json',
        'Authorization': 'Bearer token123',
        'X-Request-ID': 'abc-123'
    },
    json={
        'name': 'John Doe',
        'email': 'john@example.com',
        'role': 'admin'
    }
)

data = response.json()
print(data)

Python (httpx - async)

import httpx

async with httpx.AsyncClient() as client:
    response = await client.post(
        'https://api.example.com/users',
        headers={
            'Content-Type': 'application/json',
            'Authorization': 'Bearer token123',
            'X-Request-ID': 'abc-123'
        },
        json={
            'name': 'John Doe',
            'email': 'john@example.com',
            'role': 'admin'
        }
    )
    data = response.json()
    print(data)

Go (net/http)

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io"
    "net/http"
)

func main() {
    body := map[string]interface{}{
        "name":  "John Doe",
        "email": "john@example.com",
        "role":  "admin",
    }
    jsonBody, _ := json.Marshal(body)

    req, _ := http.NewRequest("POST", "https://api.example.com/users", bytes.NewBuffer(jsonBody))
    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("Authorization", "Bearer token123")
    req.Header.Set("X-Request-ID", "abc-123")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    responseBody, _ := io.ReadAll(resp.Body)
    fmt.Println(string(responseBody))
}

PHP (Guzzle)

<?php
require 'vendor/autoload.php';

use GuzzleHttp\Client;

$client = new Client();

$response = $client->post('https://api.example.com/users', [
    'headers' => [
        'Content-Type' => 'application/json',
        'Authorization' => 'Bearer token123',
        'X-Request-ID' => 'abc-123'
    ],
    'json' => [
        'name' => 'John Doe',
        'email' => 'john@example.com',
        'role' => 'admin'
    ]
]);

$data = json_decode($response->getBody(), true);
print_r($data);

Ruby (HTTParty)

require 'httparty'

response = HTTParty.post(
  'https://api.example.com/users',
  headers: {
    'Content-Type' => 'application/json',
    'Authorization' => 'Bearer token123',
    'X-Request-ID' => 'abc-123'
  },
  body: {
    name: 'John Doe',
    email: 'john@example.com',
    role: 'admin'
  }.to_json
)

puts response.parsed_response

Java (HttpClient)

import java.net.http.*;
import java.net.URI;

HttpClient client = HttpClient.newHttpClient();

String body = """
    {"name": "John Doe", "email": "john@example.com", "role": "admin"}
    """;

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.example.com/users"))
    .header("Content-Type", "application/json")
    .header("Authorization", "Bearer token123")
    .header("X-Request-ID", "abc-123")
    .POST(HttpRequest.BodyPublishers.ofString(body))
    .build();

HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

C# (HttpClient)

using System.Net.Http;
using System.Text;
using System.Text.Json;

var client = new HttpClient();

var body = new {
    name = "John Doe",
    email = "john@example.com",
    role = "admin"
};

var content = new StringContent(
    JsonSerializer.Serialize(body),
    Encoding.UTF8,
    "application/json"
);

client.DefaultRequestHeaders.Add("Authorization", "Bearer token123");
client.DefaultRequestHeaders.Add("X-Request-ID", "abc-123");

var response = await client.PostAsync("https://api.example.com/users", content);
var responseBody = await response.Content.ReadAsStringAsync();
Console.WriteLine(responseBody);

Rust (reqwest)

use reqwest;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), reqwest::Error> {
    let client = reqwest::Client::new();

    let response = client
        .post("https://api.example.com/users")
        .header("Content-Type", "application/json")
        .header("Authorization", "Bearer token123")
        .header("X-Request-ID", "abc-123")
        .json(&json!({
            "name": "John Doe",
            "email": "john@example.com",
            "role": "admin"
        }))
        .send()
        .await?;

    let body = response.text().await?;
    println!("{}", body);

    Ok(())
}

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Supported cURL Options

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Technical Details

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Tips for Best Results

1. Quote your URLs - Use single quotes around URLs with query params
2. Escape JSON properly - Ensure valid JSON in -d parameter
3. Include all headers - Copy complete cURL including auth headers
4. Check method - Default is GET; use -X POST for POST requests

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Common Patterns

Basic Authentication

curl -u username:password https://api.example.com/data

File Upload

curl -X POST https://api.example.com/upload \
  -F 'file=@document.pdf' \
  -F 'description=My document'

Form Data

curl -X POST https://api.example.com/login \
  -H 'Content-Type: application/x-www-form-urlencoded' \
  -d 'username=john&password=secret'

With Cookies

curl https://api.example.com/dashboard \
  -b 'session=abc123; csrf=xyz789'

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Use Cases

API Testing

Convert Postman/Insomnia cURL exports to your codebase:

1. Export request as cURL from Postman
2. Paste into converter
3. Get code in your language

Documentation

Generate code examples from cURL commands for API docs.

SDK Development

Create client library methods from API specifications.

Learning

Understand how cURL options translate to HTTP client code.

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Privacy & Security

• 100% client-side - No data sent to servers
• No storage - cURL commands not persisted
• No tracking - Input not logged
• Works offline - No internet required after page load

Note: Be careful with sensitive data (tokens, passwords) in cURL commands. While this tool doesn't transmit data, avoid pasting production credentials.