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JSON Formatter & Validator
Paste your JSON and format it with customizable indentation or minify it. Our validator highlights syntax errors instantly. All processing happens in your browser.
Tool component not yet implemented
json-formatter
How to use JSON Formatter & Validator
- 1Paste your input in the panel above or use the example data if available.
- 2Choose an action — format, generate, convert, encode, or analyze.
- 3Your result appears instantly. Use Copy to grab it, or Download if a file option is shown.
Runs entirely in your browser
Nothing you type, paste, generate, or upload leaves your device.
Frequently asked questions
Is my JSON data sent to a server?
No. All processing happens locally in your browser. Your data never leaves your device.
What is JSON formatting?
JSON formatting adds proper indentation and spacing to make JSON human-readable. Minifying does the opposite, removing all unnecessary whitespace.