Invalid JSON Repair

Repair malformed and invalid JSON data. Automatically detect and fix syntax issues, missing quotes, trailing commas, and more.

Repaired JSON will appear here...

What Is This Tool?

Repair invalid and malformed JSON data automatically. Handles single quotes, trailing commas, unquoted keys, Python None/True/False, and more.

How to Use

  1. Paste your invalid JSON into the input editor.
  2. Click "Repair JSON" to fix all issues.
  3. Copy the repaired JSON output.

Frequently Asked Questions

Is this tool safe?

Yes. Processing is 100% client-side with no server upload.

Related Tools