How to Format and Pretty-Print JSON
{ } Open the JSON Formatter to try every feature described in this guide.
Open JSON Formatter →What Is the JSON Formatter?
The JSON Formatter takes minified or poorly-indented JSON and produces a clean, readable pretty-printed version. It validates the input first and shows precise parse errors if the JSON is malformed. All processing happens in your browser.
Try the JSON Formatter — free, private, no install.
Open the Tool →When to Use It
- Make a minified API response readable for debugging.
- Produce a consistently-indented JSON file before committing to version control.
- Verify that a JSON payload is valid before use.
- Convert 2-space indented JSON to 4-space for team style standards.
Indentation Options
| Option | Best for |
|---|---|
| 2 spaces | JavaScript/TypeScript projects, JSON configs |
| 4 spaces | Python projects, many REST API conventions |
| Tab | Editors configured for tab indentation |
Privacy
All processing is local. Your JSON never leaves your browser.
For a step-by-step walkthrough see the JSON Formatter tutorial.
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