Repair malformed JSON

Repairs are always previewed

Repair is intentionally separate from formatting. The original document stays untouched until you inspect the proposed result and choose Apply repair.

Automated repair is useful for JavaScript-like objects and truncated model output, but you should still review semantic values before using the result in production.

How to use this tool

1. Paste malformed JSON or JavaScript-like object text.
2. Review the proposed repair beside the unchanged source.
3. Apply only after confirming that strings, numbers, and structure mean what you expect.

Example

{name: 'Ada', active: true,}

{"name":"Ada","active":true}

Common problems

• Repair can restore syntax, but it cannot infer missing business meaning.
• Truncated strings or arrays may need a manual closing token.
• Always validate and review generated or production data after repair.

Useful tips

• Keep a copy of the original payload.
• Validate after applying a repair.
• Review repaired numbers and strings carefully.