Free

JSON Formatter & Validator

Format, validate, and beautify JSON data with syntax highlighting

Browser-onlyNo uploadsInstant

Input

Try our other free tools

CSV to JSON
Convert CSV files to JSON format instantly in your browser
JSON to CSV
Convert JSON data to CSV format for spreadsheets and analysis
XML to JSON
Convert XML documents to JSON format for modern applications
Excel to CSV
Convert Excel spreadsheets (.xlsx, .xls) to CSV format
JSON to YAML
Convert JSON data to YAML format for configuration files
View all free tools →

FAQ

Is this tool really free?

Yes! This tool is completely free to use with no limits. No signup, no credit card, no hidden fees.

Is my data secure?

Absolutely. Your data never leaves your browser. All processing happens locally on your device using JavaScript. We don't store or transmit your data.

What's the maximum file size?

The tool supports files up to 10MB. For larger files, consider splitting them first or using our desktop solutions.

Need to visualize your data?

Create beautiful charts with CleanChart — no coding required.

Create a Chart