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JSON Formatter & Validator
Format, validate, and beautify JSON data online. Instant syntax highlighting and error detection.
All processing happens in your browser. Your data never leaves your device.
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How to Use JSON Formatter & Validator
- 1Paste or type your input in the left panel.
- 2Click Process or use the keyboard shortcut ⌘↵.
- 3View the result in the output panel. Use Copy to copy to clipboard or Download to save as a file.
This tool processes data locally in your browser. Nothing is sent to external servers.
Examples
Example input
# Example for JSON Formatter & Validator
# Paste your content in the input panel above to get started.Frequently Asked Questions
What is a JSON Formatter?
A JSON formatter takes raw JSON text and formats it with proper indentation and line breaks, making it easier to read and debug.
Is my data sent to any server?
No. All processing happens entirely in your browser. Your data never leaves your device.
Can it validate JSON syntax?
Yes, the tool highlights syntax errors in real time and shows the line number of any issues.
Does it support large JSON files?
Yes, the formatter handles large JSON payloads efficiently in the browser.
Can I minify JSON too?
Yes, you can toggle between pretty-printed and minified (compact) output.