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Broken / Messy AI JSON
Fixed JSON Output
More Free JSON Tools
Why AI-Generated JSON Breaks
Large language models often return JSON with extra text, markdown code fences, trailing commas, single quotes, unquoted keys, comments, or incomplete formatting.
Common Issues This Tool Fixes
- Removes markdown fences like
```json - Extracts JSON from surrounding AI explanation text
- Removes trailing commas
- Converts smart quotes
- Attempts to quote unquoted keys