JSON Editor
Formatted Output
Formatted JSON will appear here...How to Format JSON
Format, minify, and validate your JSON data with this free online tool.
Paste Your JSON
Copy and paste your JSON data into the editor above.
Choose Options
Select your preferred indent style, size, and whether to sort keys.
Format or Minify
Click "Format JSON" to prettify or "Minify" to compress your JSON.
Frequently Asked Questions
Is this JSON formatter free to use?
Yes, our JSON formatter is completely free. No sign-up required, no usage limits, and no watermarks on your formatted data.
Does the formatter validate my JSON?
Yes. When you click 'Format JSON', the tool first validates your input. If the JSON is invalid, it will show you a detailed error message with the exact location of the problem.
What's the difference between format and minify?
Format adds indentation and line breaks to make JSON readable. Minify removes all unnecessary whitespace to make JSON as compact as possible, which is useful for reducing file size in production.
Can I sort JSON keys alphabetically?
Yes, the 'Sort Keys' option will recursively sort all object keys in alphabetical order. This is useful for comparing two JSON objects or maintaining consistent key ordering.
Is my JSON data sent to a server?
No. All formatting and validation happens in your browser using JavaScript. Your data is never sent to any server and remains completely private.
What is the maximum JSON size supported?
The tool can handle JSON data of any size that your browser can process. For very large files (10MB+), performance may vary depending on your device.