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JSON Converter

Format, validate, and convert JSON online

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Input JSON
Output
Converted output will appear here...

What is JSON Converter?

JSON Converter is an all-in-one tool for formatting, validating, and converting JSON data. It runs entirely in your browser, so your data never leaves your device. Convert JSON to CSV, YAML, XML, or generate type definitions for multiple programming languages.

Key Features

Format and Validate

Pretty-print JSON with proper indentation, or minify it into a compact single line. Instant validation highlights syntax errors.

Multi-Format Conversion

Convert JSON to CSV, YAML, or XML with a single click. Great for data interchange between different systems and tools.

Code Generation

Generate type definitions and data classes from JSON for TypeScript, Go, Python, Rust, Swift, Java, Kotlin, C#, C++, PHP, and Ruby.

Common Use Cases

Format messy API responses for easier debugging and readability. Convert JSON data exports to CSV for use in spreadsheets like Excel or Google Sheets. Generate TypeScript interfaces or Python dataclasses from API response payloads to speed up development.

How It Works

1

Paste JSON

Paste or type your JSON data into the input field

2

Choose Format

Select your desired output format from the dropdown

3

Get Result

Copy the formatted output or download as a file

Frequently Asked Questions

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Last updated: Feb 27, 2026