JSON Validator & Formatter

Validate and format messy JSON for readability. Free, secure, and works directly in your browser. No registration required.

JSON Validator & Formatter

Input JSON

0 characters 0 lines

Formatted JSON

Ready 
Your formatted JSON will appear here...

How to use JSON Validator & Formatter

  1. Paste your JSON code into the input field.
  2. Click the 'Validate & Format' button to process.
  3. Review the validated and beautified JSON output.
  4. Copy or download the formatted JSON for your use.

Features

  • Validates JSON syntax and highlights errors instantly.
  • Formats JSON with proper indentation and line breaks for readability.
  • Supports large JSON files and data structures.
  • Works directly in your browser without any installation.
  • Provides a clean, side-by-side view of input and output.

Who Is This Tool For?

This tool is essential for developers, data analysts, and API integrators who need to verify, clean, and present JSON data clearly.

Why Validate and Format JSON?

A JSON Validator & Formatter ensures data integrity by catching syntax errors and improves code maintainability by converting messy JSON into a human-readable, structured format, which is critical for debugging, documentation, and API development.

Frequently Asked Questions

Is this JSON validator and formatter free?

Will my JSON data leave my browser?

How do I use the tool to format my JSON?

What happens if my JSON has errors?

Does the tool support different formatting styles?

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