JSON Formatter
Format, beautify and validate JSON with 2 or 4 space indentation.
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Formatted JSON
Paste valid JSON on the left to see it formatted here.
About JSON Formatter
JSON (JavaScript Object Notation) is the default data-interchange format of the modern web. Minified JSON is efficient to transmit but painful to read, and a single misplaced comma is enough to break a parser without telling you where.
This formatter re-indents your document with two or four spaces, minifies it back down when you need to ship it, and reports the exact position of any syntax error so you can fix it immediately.
Frequently asked questions
Is my JSON uploaded anywhere?
No. Parsing and formatting happen with the browser built-in JSON API on your own device. Nothing is transmitted.
Does formatting change my data?
The formatter preserves key order exactly as written. It only changes whitespace, so the parsed value is identical.
What is the maximum size?
There is no hard limit, but documents above a few megabytes may take a moment because they are processed in your browser.