JSON Validator & Formatter
Validate, format, and beautify your JSON data 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.
Input Options
Paste your JSON data or upload a JSON file to validate and format it. The validator will check for syntax errors and output properly formatted JSON.
Formatting Options
JSON Input
Formatted JSON
Validating & Formatting JSON
- 1.Enter or upload your JSON data
- 2.Select your preferred indentation size (2, 4, or 8 spaces)
- 3.Click "Validate & Format JSON"
- 4.If your JSON is valid, the formatted result will appear. If not, an error will be shown.
About JSON Validation
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. However, JSON syntax is strict, and even a small error like a missing comma or an extra bracket can make the entire structure invalid.
Our JSON validator helps you:
- Identify syntax errors and their location in your JSON
- Format JSON with proper indentation for better readability
- Minify JSON to reduce file size for production use
- Analyze basic statistics about your JSON structure
- Prepare data for use in APIs, configuration files, or databases