JSON Validator & Formatter
Validate, format, and beautify your JSON data including ChatGPT output style JSON with this powerful online tool. Fix syntax errors, properly indent your JSON, or minify it for production use. All processing happens in your browser for complete privacy.
Formatting Options
Validation Options
Automatically validate JSON as you type (with 500ms delay)
JSON Input
Validation Results
Using the JSON Validator
- 1.Enter your JSON data in the input box, or use the "Upload" button to select a JSON file
- 2.Configure formatting options like indentation size and key sorting
- 3.Enable auto-validation if you want real-time feedback while typing
- 4.Click "Validate & Format JSON" to check syntax and format your data
- 5.Copy the formatted JSON or fix any syntax errors identified
About JSON Validation & Formatting
JSON (JavaScript Object Notation) is a lightweight data interchange format. This tool validates JSON syntax and provides formatted output with proper indentation and optional features like key sorting and minification.
This tool is particularly useful when:
- You need to validate JSON from APIs, ChatGPT responses, or data exports
- You want to format and beautify minified or poorly formatted JSON
- You're debugging JSON syntax errors in your applications
- You need to sort object keys alphabetically for consistency
- You want to minify JSON for production or reduce file size