Free JSON Formatter Online

Paste JSON into the formatter to beautify, validate, minify, sort, search, extract and convert JSON instantly. This tool runs directly in your browser with no registration or installation required.

JSON Formatter, Validator, Minifier and Converter

Paste JSON to format and validate it.
Characters: 0 Lines: 0 Objects: 0 Arrays: 0 Keys: 0
JSON Input
Formatted JSON Output

What Is This JSON Formatter?

This free JSON formatter helps you beautify, validate, minify, inspect, sort and convert JSON data. It is useful for developers, API users, Power Automate users, AI tool users and anyone working with structured data.

Features

  • Beautify and format JSON
  • Minify JSON
  • Validate JSON syntax
  • Sort JSON keys alphabetically
  • Search keys and values
  • Tree view with expand and collapse
  • JSON size statistics
  • Extract JSON from AI responses or messy text
  • Convert JSON arrays to CSV
  • Render JSON arrays as a table
  • Copy and download output
  • Runs entirely in your browser

Common Uses For A JSON Formatter

API Development

Format and inspect API responses from web applications and services.

Power Automate

Review JSON outputs used in Microsoft Power Automate workflows.

AI Generated JSON

Extract and validate JSON produced by ChatGPT, Claude, Gemini or Copilot.

Configuration Files

Clean and validate JSON configuration files for apps and systems.

Data Conversion

Convert simple JSON arrays into CSV or table format.

Debugging JSON Errors

Find missing commas, broken quotes, invalid arrays and malformed objects.

Common JSON Errors

  • Missing comma between values
  • Trailing comma after the final item
  • Unclosed quotation marks
  • Unclosed objects or arrays
  • Using single quotes instead of double quotes
  • Invalid escape characters

Frequently Asked Questions

What does a JSON formatter do?

A JSON formatter turns compact or messy JSON into readable, indented JSON.

Is this JSON formatter free?

Yes. This JSON formatter is free to use directly in your browser.

Does this tool upload my JSON?

No. JSON processing happens locally in your browser using JavaScript.

Can this tool extract JSON from AI responses?

Yes. You can paste text containing JSON and use the extract feature to find a valid JSON block.

Can I convert JSON to CSV?

Yes. Simple arrays of JSON objects can be converted into CSV format.

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