Developer tool
JSON Formatter
Paste JSON to check that it parses, then format it for reading or minify it for a compact copy.
Processed in your browser. The text is not sent to our servers.
How to format JSON online
- Paste a JSON object or array into the input.
- Choose Format for readable indentation, or Minify to remove extra space.
- Copy the result. Invalid JSON shows the parser error instead of a broken output.
Frequently asked questions
Does this JSON formatter upload my data?
No. Parsing and formatting happen in your browser. The text is not sent to our servers.
What happens with invalid JSON?
The tool reports the parser error and leaves the output empty so you can fix the input.
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