cURL to JSON Converter

Convert cURL commands into structured JSON request objects, headers, and payloads instantly in your browser.

At a glance

cURL to JSON Converter is a free web tool that converts cURL commands into structured JSON HTTP request objects, headers, Postman collection items, and extracted body payloads. Parsing executes 100% client-side in your browser, keeping sensitive API tokens and credentials completely private.

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100% Client-Side cURL to JSON Converter

Zero Server Uploads

Parse cURL commands into structured JSON HTTP request objects, Postman Collection items, and extracted payloads client-side in browser memory.

Local Sandbox
Presets:
0 lines • 0 chars
JSON Output Configuration
0 lines • 0 B
Ready

Why Use This cURL to JSON Converter?

100% Client-Side Privacy: Your sensitive API tokens, cookies, and secret payloads are processed locally without server communication.
Multiple JSON Output Modes: Switch between Full Request Object, Extracted Body Payload, Postman Collection Item, or Headers Dictionary.
Smart Body Parser: Automatically parses JSON bodies, URL-encoded parameters, and multipart forms into structured objects.
POSIX & Windows Syntax: Seamlessly handles multi-line commands with backslash (\) and Windows caret (^) line continuations.
Sensitive Data Masking: One-click option to redact Bearer tokens, Authorization credentials, and API keys.

How to Use cURL to JSON Converter

1

Input Command

Paste your cURL command into the editor or upload a shell script file.

2

Select Mode & Options

Choose output mode (Full Request, Body Only, Postman Item, Headers) and configure indentation or redaction.

3

Copy or Download

Copy formatted JSON output to your clipboard or download as a .json file.

cURL POST Request to Structured JSON Request Object

Demonstrates parsing a multi-line cURL POST command into a clean, structured JSON HTTP request object with method, headers, and parsed body.

cURL Command Source 
curl -X POST https://api.example.com/v1/users \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer my_token" \
  -d '{"name":"Alice","role":"developer"}'
Structured JSON Request Processed 
{
  "method": "POST",
  "url": "https://api.example.com/v1/users",
  "origin": "https://api.example.com",
  "pathname": "/v1/users",
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer my_token"
  },
  "body": {
    "name": "Alice",
    "role": "developer"
  }
}

Technical Specifications & Engine Details

Technical specifications and engine details for cURL to JSON Converter
Specification Details
Supported Formats CURL, TEXT, SH → JSON, TEXT
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Modern browser with JavaScript enabled.
Performance Constraints 100% Client-Side. Runs entirely in browser JavaScript memory.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

All cURL parsing and JSON generation execute client-side in browser memory. Zero commands or credentials leave your device.

Frequently Asked Questions

Does this tool transmit my API keys or tokens over the network?
No. The cURL lexer and JSON transpiler run 100% in your local browser sandbox. No input commands or output JSON are ever transmitted to any external server.
Can I convert cURL commands directly into Postman Collection format?
Yes. Select 'Postman Collection v2.1 Item' in the Output Mode dropdown to generate a ready-to-import Postman request item with url, headers, and body properly configured.
How does it handle multi-line cURL commands?
Our shell tokenizer automatically strips backslash (\) and Windows caret (^) line continuation characters while preserving quoted multiline strings.
Does it parse URL-encoded form data (-d "a=1&b=2")?
Yes. URL-encoded payloads are automatically decoded into clean key-value JSON objects.

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated .

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