Free online tool
JSON Formatter
Format JSON with two-space indentation and identify syntax errors.
Your input is processed only in this browser.
Result
No formatted result yet. Enter JSON and select Format.
How to use
- Paste JSON into the input area.
- Select Format to validate it and create a two-space-indented result.
- If an error appears, check the indicated location.
- Copy the result or reset everything.
Example
Input
{"name":"Free Online Tools","free":true}Result
{
"name": "Free Online Tools",
"free": true
}Frequently asked questions
Is my JSON stored on a server?
No. Your input is processed only in the current browser.
Why might the error position be imprecise?
Browsers provide different JSON error details, so a position may not always be available.
Can it format arrays and numbers?
Yes. It supports every valid JSON value.