Before
{"result":{"count":3,"items":[{"id":1},{"id":2},{"id":3}]}}
What this tool does
JSON pretty print turns dense one-line payloads into readable blocks with consistent indentation so you can scan structure quickly.
Common use cases
- Reading API responses copied from a browser network panel.
- Preparing clean JSON examples for docs or bug reports.
- Understanding nested objects before mapping data.
- Comparing changes between two JSON payloads visually.
Before and after example
After
{
"result": {
"count": 3,
"items": [
{"id": 1},
{"id": 2},
{"id": 3}
]
}
}
Common JSON errors related to pretty printing
- Formatting fails when the JSON is invalid.
- Missing quotes or commas often appear in copied pseudo-JSON.
- Broken brackets make nested data impossible to beautify.
- Comments from config snippets are not valid JSON.
How to use the tool
- Paste minified or messy JSON into the editor.
- Click Pretty Print JSON.
- Use Validate if the tool reports a syntax error.
- Copy the readable output or switch to JSON Minifier later.
Privacy note: Runs locally in your browser. Your JSON is not uploaded.
Related JSON tools
FAQ
Is pretty print the same as beautify JSON?
Yes. Pretty print and beautify are common terms for the same readable formatting workflow.
Can this tool handle minified JSON?
Yes. It is designed to expand minified JSON into readable output.
Will pretty printing fix invalid JSON?
No. The input must be valid first. If it is not, use Fix Invalid JSON or the validator.
Can I pretty print locally without uploading data?
Yes. The tool runs locally in your browser, so your JSON is not uploaded.