JSON Formatter & Validator
json-formatter-validatorValidate, pretty-print or minify JSON and see clear parsing errors.
🛡 Privacy-first⚡ Fast🔓 No signup📱 Mobile friendly
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💡 Useful information
Format JSON for readability, validate syntax, report parsing errors or minify JSON locally in your browser.
- Runs directly in a modern browser.
- Works on phones and desktop computers.
- Reuse it without creating an account.
ℹ️ How to use
- Enter your data or choose the required file.
- Adjust the available options.
- Run the tool and review the result.
- Copy or download the result when needed.
❔ Frequently asked questions
Is my JSON sent to a server?
No. Parsing and formatting happen locally in the browser.
Does it show syntax errors?
Yes. The parser error message is displayed when JSON is invalid.
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