Practical guide

How to use JSON Fix

JSON Fix is for configuration fragments, API responses, and copied objects that are almost valid JSON but fail to parse. It repairs common punctuation and quoting problems, then formats the result so changes are easy to inspect.

Step by step

  1. Paste the malformed JSON into the editor.
  2. Run the repair and review any reported changes or remaining errors.
  3. Copy or download the formatted result only after confirming that values still mean what you expect.

Example

Input{name: 'toolkit', active: true,}
Result{ "name": "toolkit", "active": true }

How it works

The tool applies targeted syntax repairs and then parses the result as JSON. Successful parsing is a syntax check, not a validation of your application's schema or business rules.

Important limitations

  • Ambiguous missing values cannot always be inferred safely.
  • Secrets pasted into any browser tool should be rotated if the device or session is not trusted.

Frequently asked questions

Can JSON Fix recover every broken document?

No. It can repair common syntax mistakes, but heavily truncated or logically ambiguous data requires a human decision.

Does the JSON leave my browser?

The repair interface processes the pasted text in the current browser session and does not upload it to a 77 Toolkit API.