JSON sort·verifier
JSON check syntax and clean up indentation or compression format
Input
The example value has been entered. Check it immediately or change the value.
Input is processed in the browser. Refreshing returns a sample value.
Result
Check or change the value using the example value result.
JSON numbers use JavaScript Number range. Enter exact large integers as strings
Share result
Share the tool link and result text together. No URL is included in the result. Check the below content and then share it.
Calculation·conversion criteria
JSON syntax checking and indentation cleanup
Input example
{"a":1} is formatted with 2 indentation
Object keys and strings must be enclosed in double quotes. {"a":1} is valid, but {'a':1} is not JSON and does not allow comments or trailing commas.
How to use
- Use the provided example value or replace the JSON output format field.
- Click Verify result and check the following result.
- Result can be copied if needed.
Frequently Asked Questions
After organizing long number IDs, could the value change?
Large integers that cannot be represented as JavaScript numbers may lose precision during parsing. Handle identifiers as strings enclosed in quotes. This tool is not a parser that preserves original number formatting.
Does duplicate JSON keys also cause an error?
This tool follows JSON.parse behavior, so if the same key appears repeatedly in the same object, the last value may remain. Do not use it for duplicate key detection or preserving original text required for verification.
Calculation criteria and reference materials
- RFC 8259 — JSON
JSON syntax and interoperability considerations for number precision
Verification of calculation criteria: · Calculation·verification principles · Report errors