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
Enter a curl command starting with 'curl'. The converter auto-converts as you type.
Try sample commands:
Auto-converts as you type
Converted Code
PythonPaste a curl command to convert
Your code will appear here
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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
- Copy your curl command — from terminal, browser DevTools (Network tab → Copy as cURL), Postman, or API documentation.
- Paste it into the input textarea on the left. The tool auto-converts as you type.
- Select your target language — click one of the 9 language tabs above the output.
- Copy the converted code — click the Copy button or select the code manually.
- Adjust if needed — some languages may require installing dependencies like
pip install requestsornpm 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
$VARwon't translate directly — replace them with actual values first. - File uploads — The
@filenamesyntax 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.
When Developers Need a Curl Converter
If you work with APIs, you inevitably end up with curl commands that need to become real code. Here are the most common scenarios where this tool saves time:
- Debugging API responses in DevTools: You inspect a network request, copy it as curl, then need the equivalent code for your backend script or test suite. This converter turns that DevTools export into runnable code in seconds.
- Translating API documentation: Many REST APIs provide curl examples in their docs. If your stack is Python or Node.js, you'd otherwise manually rewrite each example. Paste and convert instead.
- Migrating between tech stacks: When a project moves from PHP to Python, or from Ruby to Go, every curl-based API call needs rewriting. This tool handles the mechanical translation so you can focus on architecture.
- Writing test fixtures: QA engineers often capture real HTTP requests as curl commands from proxy logs, then need them as code for automated test suites. The converter produces clean, readable test-ready code.
- Onboarding new team members: Junior developers unfamiliar with curl syntax can paste a command and instantly see how it maps to their preferred language — a practical way to learn HTTP library conventions.
- Quick scripts and automation: When you need a one-off script to hit an endpoint, starting from a working curl command is faster than writing the HTTP client code from scratch. Convert, tweak, run.
Privacy & Security
When you paste a curl command into this tool, it may contain sensitive information — API keys, authentication tokens, session cookies, or personal data. Here is how this tool handles it:
- 100% client-side processing: The curl parser and all language converters run entirely in your browser using JavaScript. No data is sent to any server, API, or third-party service.
- No network requests: Unlike server-based converters, this tool makes zero outbound requests during conversion. Your curl command never leaves your machine.
- No storage: Nothing is saved to cookies, localStorage, or any database. When you close or refresh the page, everything is gone.
- No tracking of commands: We do not log, analyze, or store the curl commands you enter. There are no analytics events fired on input content.
That said, always exercise caution when working with production credentials. Consider redacting sensitive tokens before pasting if you are using a shared or public computer.
Frequently Asked Questions
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