JSON repair tool
Fix broken JSON from AI.
Paste messy JSON. Get valid JSON back.
What It Fixes
AI-generated JSON often looks close enough to use, but small syntax mistakes make it fail in scripts, APIs, and no-code tools. This repair tool handles common structural issues and returns valid, pretty JSON.
Example Broken JSON
Here is the JSON:
```json
{
name: 'Greg',
items: ['a', 'b',],
done: True,
notes: None
}
``` Good For
Use it when ChatGPT, Claude, or another model gives you JSON with markdown fences, comments around the object, single quotes, Python booleans, trailing commas, or missing closing braces.
Keep in Mind
This tool repairs structure. It does not verify that names, numbers, URLs, or claims inside the JSON are true. For that, use a verification workflow.