JSON Formatter
Format, validate, and minify JSON data instantly.
How it works
Paste your raw or minified JSON data and the formatter instantly validates the syntax, beautifies it with proper indentation, and highlights any errors. You can also minify formatted JSON back to a single line for production use.
Why use this tool?
Developers use this free online JSON formatter to debug API responses, validate JSON configuration files, and make unreadable minified JSON human-friendly. Supports JSON up to several megabytes in size.
Frequently Asked Questions
What does JSON formatting do?
It takes minified or messy JSON and adds proper indentation and line breaks, making it easy to read and debug.
Can it validate JSON?
Yes. If your JSON has syntax errors (missing commas, unquoted keys, etc.) the formatter will highlight the error.
Is my JSON data private?
Yes. All formatting happens in your browser. Your JSON is never sent to any server.
Can it minify JSON too?
Yes. Minifying removes all whitespace to produce the smallest possible JSON string, ideal for APIs and storage.
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