📝 Request Configuration
📁 Drag & drop a JSON file here, or click to select
📦 Generated Result
Click "Generate Code" or load an example to see results...
📋 History
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The JSON to HTTP Request Generator is a free online tool for developers that quickly converts JSON data into HTTP request code for multiple programming languages. Whether you're debugging APIs, writing interface documentation, or learning HTTP client libraries, this tool lets you generate executable cURL commands, JavaScript fetch/axios code, Python requests scripts, and more with a single click — dramatically boosting development efficiency.
1. Select an HTTP method (POST/GET/PUT, etc.) and enter the request URL
2. Fill in custom headers in the Headers area, such as Authorization
3. Paste or type JSON data in the request body area, or drag a JSON file to import
4. Click "Generate Code" or use Ctrl+Enter to generate instantly
5. Switch between programming languages using the tabs at the top
6. Click "Copy Result" to copy code to clipboard, or download as a file
Frontend developers debugging backend APIs can quickly convert JSON examples from API docs into cURL commands, verifying responses in the terminal — lighter and faster than Postman.
Backend developers writing API integration code can convert test JSON data into Python requests or Go http code, pasting it directly into projects without manually assembling request bodies.
Technical writers creating API documentation can use this tool to generate request examples in multiple languages for the same endpoint, covering a broader developer audience.
Programming instructors teaching HTTP requests can compare request syntax across languages, helping students understand the similarities and differences of HTTP clients.
HTTP requests are a core skill in web development. Different languages provide their own HTTP client libraries: JavaScript has fetch API and axios, Python has requests, Java has HttpClient, Go has net/http. While syntax varies, the core concepts are the same: method, URL, headers, and body. This tool helps developers cross language barriers, quickly converting JSON data into HTTP request code in any language. Always set Content-Type headers in production and use HTTPS to ensure secure data transmission.
It supports cURL, JavaScript fetch, axios, Python requests, Java HttpClient, Go http.NewRequest, PHP Guzzle, and Ruby Net::HTTP — 8 popular HTTP client libraries.
All common HTTP methods: GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS.
The tool provides a Headers input area where you can add custom headers like Content-Type and Authorization, with quick presets for Bearer Token and Basic Auth.
No. All conversion logic runs locally in your browser. Your JSON data and API configuration never leave your device.
Yes. You can define multiple request objects in a JSON array, and the tool will generate HTTP request code for each one.
Yes. The generated code is a complete, executable snippet with all necessary imports and error handling. Just copy and paste it into your project.
The tool automatically handles nested JSON. Deep data is properly serialized and sent in the request body, supporting both object and array nesting.