J

JSON Formatter & Validator

Format, validate, and minify JSON data

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Frequently Asked Questions

What is JSON formatting?
JSON formatting (pretty-printing) adds indentation and line breaks to make JSON data human-readable. Minifying does the opposite — removes whitespace to reduce file size.
How do I fix invalid JSON?
Common JSON errors include trailing commas, single quotes instead of double quotes, and unquoted keys. Paste your JSON here and the validator will show the exact error location.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format. It is easy for humans to read and write, and easy for machines to parse and generate. JSON is the most common format for APIs and configuration files.