JSON Formatter & Validator
Format, validate and minify JSON online. 100% free, works in browser — no data sent to server.
Your data never leaves your browser
INPUT JSON
OUTPUT
Frequently Asked Questions about JSON Formatting and Validation
How to format JSON online for free with custom indentation?
Convertor360 allows you to format JSON strings online for free using 2, 4, or 8-space indentation. Simply paste your raw JSON and click "Format" to generate a readable, pretty-printed version instantly.
Is there a private JSON validator that doesn't upload my data?
Yes, our JSON validator is 100% private and runs entirely within your browser. Since all validation happens locally, your sensitive JSON data never leaves your computer, ensuring total privacy.
Can I minify JSON strings for optimized web performance?
Absolutely. Our tool includes a "Minify" feature that removes all whitespace and line breaks from your JSON, creating a compact string that helps optimize web performance and reduce file sizes.