How do I use the JSON Formatter?

Simply paste your JSON data into the input field and our tool will automatically format, validate, and beautify it. You can then copy the result or download it as a file.

Is the JSON Formatter free to use?

Yes, our JSON Formatter is completely free to use for both personal and commercial projects. No registration or payment required.

Is my JSON data safe when using this tool?

Absolutely. All JSON processing happens locally in your browser. We don't store, transmit, or have access to any data you input into our tool.

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Development · Free tool

JSON formatter & validator.

Format, validate, convert, and analyze JSON — with schema generation and a tree viewer. Everything runs locally in your browser; nothing is sent to a server.

JSON Tools

Input JSON

Upload

Indent Size

Sort Keys

Escape Unicode

Formatted JSON

Format & Beautify

Clean up minified JSON with proper indentation and formatting

Validate & Fix

Validate JSON syntax and automatically fix common errors

Convert Formats

Convert JSON to XML, YAML, CSV, and URL parameters

Tree Viewer

Visualize JSON structure in an interactive tree format

How to use & advanced features

1. Format JSON

• Paste your JSON in the input area
• Choose formatting options (indent, sort keys)
• Click "Beautify" for readable format
• Use "Minify" to compress JSON

2. Validate & Fix

• Automatic validation on input
• View detailed error messages
• Use "Auto Fix" for common issues
• Generate or validate with schemas

3. Convert & View

• Convert to XML, YAML, CSV formats
• Use tree view for complex structures
• Load from URLs or upload files
• Download formatted results

Schema Generation

• Auto-generate JSON Schema from data
• Draft-07 compatible schemas
• Validate data against custom schemas
• Download schema files

Error Recovery

• Precise error location reporting
• Auto-fix common syntax issues
• Handle malformed quotes and commas
• Suggest corrections

Data Import/Export

• Load JSON from URLs
• Upload files directly
• Download in multiple formats
• Copy formatted results

Example conversions

JSON to XML

Input:

{"name": "John", "age": 30}

Output:

<name>
  John
</name>
<age>
  30
</age>

JSON to YAML

Input:

{"name": "John", "age": 30}

Output:

name: John
age: 30

Privacy & security

100% Client-Side

All processing happens in your browser. No data sent to servers.

No Data Storage

We don't store, log, or track any of your JSON data.

Open Source

Built with open technologies. Transparent and trustworthy.

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Frequently Asked Questions

Frequently Asked Questions (FAQs) about JSON Formatting and Validation Tool

The tool can format (prettify), validate, minify JSON data, detect syntax errors, and provide detailed error messages with line numbers for debugging.

Yes! The tool can process large JSON files efficiently. For files over 10MB, processing might take a moment, but the tool is optimized for performance.

The validator will highlight syntax errors with specific line numbers and descriptions, making it easy to identify and fix JSON formatting issues.

Currently, the tool focuses on JSON formatting and validation. For format conversion, we recommend using specialized conversion tools.

Standard JSON doesn't support comments, but the tool can handle JSONC (JSON with Comments) and will indicate when non-standard JSON features are used.

Yes! The tool includes a collapsible tree view for better visualization of nested JSON structures, making it easier to navigate complex data.

From Creative Brain Inc.

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