1. Paste JSON data
Paste or type your JSON data into the input field. Example:
{"nimi":"Testi","arvo":42,"lista":[1,2,3]}2. Format or minify
- Format: Adds indentation and line breaks — makes JSON easy to read.
- Compact: Removes unnecessary whitespace and line breaks — reduces data size.
- Clear: Clears both fields.
If the JSON data is invalid, the tool shows an error message with the error location.
3. Copy the result
Press Copy to clipboard to use the result. Copy to clipboard button to copy the formatted or compressed JSON ready for use.
Privacy
The JSON formatter runs entirely locally in your browser. The data you enter never leaves your device.