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Convert cURL commands to JavaScript, Python, PHP, Go, and Node.js code instantly.
I spent way too much time manually translating cURL commands from API documentation into actual code. Every time I found an example in a README or Stack Overflow answer, I had to mentally parse the flags, figure out the headers, and rewrite everything for my project. So I built this tool to do it automatically.
I use this alongside the JSON Formatter when testing APIs, and the JWT Decoder when debugging authentication issues.
cURL (Client URL) is the Swiss Army knife of HTTP requests. It's a command-line tool that lets you transfer data using various protocols, but most developers use it for making HTTP requests. It's installed by default on most systems and is the de facto standard for showing API examples.
The problem is that cURL commands don't run in your browser or directly in your code. You need to translate them to your programming language, which is where this converter comes in.
Use -X or --request to specify the HTTP method. If not specified, cURL defaults to GET. When you use -d (data), it automatically switches to POST.
The -H flag adds headers. You'll commonly see this for Content-Type, Authorization, and API keys. For basic auth, use -u username:passwordinstead of manually building the header.
Use -d for sending data in the request body. For JSON APIs, combine this with -H "Content-Type: application/json". For form data, use -F which handles multipart encoding automatically.
The Fetch API is built into modern browsers and Node.js 18+. It's promise-based and handles most HTTP scenarios. The generated code uses .then() chaining, but you can easily convert it to async/await.
Axios is a popular HTTP client that works in both browsers and Node.js. It has nice features like automatic JSON parsing and request/response interceptors. The converter uses the object config style which is cleaner for complex requests.
The requests library is the standard for HTTP in Python. It's clean, intuitive, and handles edge cases well. The generated code uses keyword arguments which makes the intent clear.
PHP has built-in cURL bindings through the curl extension. The generated code uses curl_setopt for configuration, which mirrors the command-line options you're familiar with.
Go's standard library includes excellent HTTP support. The generated code creates a Request object, sets headers, and uses a Client to execute it. Error handling follows Go conventions.
In Chrome DevTools (Network tab), right-click any request and select "Copy as cURL". Paste it here to recreate that exact request in your code. This is incredibly useful for debugging or automating browser interactions.
API documentation almost always includes cURL examples. Instead of manually translating each one, paste them here and get production-ready code. I do this whenever integrating with Stripe, Twilio, or any other service.
When an API request works in cURL but fails in your code, convert it here and compare. Usually it's a missing header or different body encoding. Check the Base64 Encoder if you're dealing with Basic Auth issues.
The converter supports the most commonly used options:
-X, --request - HTTP method (GET, POST, PUT, DELETE, PATCH)-H, --header - Add request headers-d, --data - Send request body--data-raw - Send raw data (no @ processing)-u, --user - Basic authentication-A, --user-agent - Set user agent string-b, --cookie - Send cookies-F, --form - Multipart form data-k, --insecure - Skip SSL verification--compressed - Request compressed responseAbsolutely. Everything runs in your browser - no server involved. Your cURL commands, API keys, passwords, and any other sensitive data never leave your machine. I built it this way because I paste production credentials here myself.
Different tools make different style choices. I optimized for readability and common patterns. The generated code is meant to be a starting point - you might want to add error handling, environment variables, or adjust the structure for your codebase.
The parser handles various quoting styles including single quotes, double quotes, and escaped characters. If you're having trouble, try removing line continuations (backslash-newline) and putting everything on one line.
Generated code will appear here...