JSON Validator & Formatter

Validate your JSON data and format it with proper indentation. Syntax errors are highlighted with exact line and column numbers. Works entirely in your browser.

JSON Input
JSON (formatted)

🔒 Your data never leaves your browser. All conversion happens locally.

How to Validate JSON

  1. Paste your JSON code into the input box on the left.
  2. Click the Validate button.
  3. If valid, the formatted JSON appears on the right.
  4. If there are errors, the exact error message and location are shown below the output box.

🔒 Privacy-First Conversion

All conversion processing happens directly in your browser using JavaScript. Your data is never sent to any server. This makes it safe to use with sensitive data like API responses, database exports, configuration files, and customer records.

Related Converters

→JSON to CSV Converter→JSON to YAML Converter→JSON to SQL Converter→JSON to XML Converter→CSV to JSON Converter→YAML to JSON Converter