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Version 0.2.0

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JSON Formatter & Validator
✨ Free Online Tool

JSON Formatter & Validator

Clean, format, and validate your JSON data instantly. Our free online JSON formatter makes messy code readable and helps you find syntax errors.

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Common Examples & Fixes

Trailing Comma

Fixes common "Unexpected token" errors caused by trailing commas in objects.

{...
Unquoted Keys

Converts non-standard JS objects to valid JSON by quoting keys.

{...
Single Quotes

Fixes JSON invalidity caused by single quotes.

{...

* Clicking an example will pre-populate the tool with sample data for testing.

How to use

  1. 1

    Paste your JSON code into the editor.

  2. 2

    Click the "Format" button to beautify your data.

  3. 3

    Check the validation status for any syntax errors.

  4. 4

    Copy or download the formatted JSON.

Key Features

  • Instant code beautification
  • Real-time syntax validation
  • Minification and compression support
  • One-click clipboard copy
  • Download as .json file

Frequently Asked Questions

Is this JSON formatter secure?

Yes, all processing happens entirely in your browser. Your data never leaves your computer.

Can I format invalid JSON?

The tool will attempt to highlight syntax errors so you can fix them before formatting.

Built by Experts

N

Neeraj Kumar

IT & Devloper Engineer

Neeraj Kumar is an IT professional with over 10 years of experience in networking and developing high-performance web applications. development is his passion.

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