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JSON Validator

Validate and format your JSON data quickly and easily with our free online JSON validator tool.

Tool Developer

This tool was created and uploaded by a community developer.

John Developer
johndeveloper

Where It Helps You

  • Debugging JSON data in APIs
  • Validating configuration files
  • Formatting JSON for readability
  • Preparing JSON data for documentation

Features

  • Instant validation results
  • Proper JSON formatting
  • Error detection with line numbers
  • Completely free to use
  • No data storage - your privacy is protected

How To Use

  1. Paste your JSON data into the text area
  2. Click "Validate JSON" to check if it's valid
  3. Click "Format JSON" to beautify your JSON
  4. View the results in the output box below

Frequently Asked Questions

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate.

Why should I validate my JSON?

Validating your JSON ensures that it's properly formatted and syntactically correct, which prevents errors in applications that consume this data.

Is my data stored when I use this tool?

No, your data is processed entirely in your browser. We don't store or transmit your JSON data to any server.

Can I format minified JSON?

Yes, our formatter will take compressed/minified JSON and make it readable with proper indentation and line breaks.