JSON Repair Preview
Preview bounded JSON syntax repairs with an explicit diff. Your data stays local and the repaired text is parsed before it is marked valid.
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Input is limited to 200000 characters. Results are computed locally and exported as JSON. Use double-quoted property names and valid JSON values. Up to 200,000 characters. Review the settings before running.
Your result
How to use JSON Repair Preview
- Paste the JSON-like text.
- Run the repair preview.
- Review the line diff and download the report.
Useful next steps
What it repairs
The preview handles a BOM, common single-quoted strings, unquoted object keys and trailing commas. It does not execute code or invent missing data.