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JSON Formatter
Format JSON into readable indented data and identify invalid JSON syntax.
Open JSON Formatter →When to use this tool
Use JSON Formatter for reading API responses, configuration files and exported data.
How it works
Paste JSON, format it locally and copy the readable result. Your content stays on your device whenever the tool supports local processing.
Frequently asked question
Does it send API data anywhere?
No. Formatting happens locally in your browser.