Data FormatsLOCALRuns in your browser
JSON Validator
Check whether text is valid JSON in the browser, with the exact error location and a structural summary.
This tool handles input and primary processing in your browser and is designed not to send the input to QuickKit’s server.
Structure summary
| Root type | — |
|---|---|
| Top-level entries | — |
| Total values | — |
| Maximum depth | — |
| Objects | — |
| Arrays | — |
| Strings | — |
| Numbers | — |
| Booleans | — |
| Nulls | — |
| Characters | — |
| Bytes (UTF-8) | — |
How it works
Validation uses the browser's strict JSON parser. When parsing fails, the reported line and column point at the offending character. The summary counts nodes and nesting depth; it does not check against a schema.