Developer Tools
JSON Formatter
Format, minify, validate, and copy JSON entirely in your browser.
JSON formatter
How it works
Paste JSON and choose Format or Minify. The tool parses the text with JSON.parse and reprints it with JSON.stringify. Invalid JSON shows a clear error.
Example
Paste {"name":"Calcly","tools":20} and format it to a readable multi-line document, or minify it back to one line.
Frequently asked questions
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