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JSON Cleaner

Repair broken JSON, remove comments and trailing commas, normalize data, and output valid parseable JSON.

10 credits
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JSON Cleaner

Repair broken JSON into parseable output

Repair broken JSON, remove comments and trailing commas, normalize data, and output valid parseable JSON.

How to use

  1. Paste broken JSON, JS-like objects, or API response fragments.
  2. Say whether to repair formatting, extract fields, or preserve the full structure.
  3. Copy the cleaned result or send it to JSON Formatter for validation.

Cleanup rules

  • Outputs strict JSON and does not keep comments, functions, or undefined.
  • Redact tokens, passwords, and keys before submitting.
  • Ambiguous structures still need human confirmation.

JSON Cleaner

Repair broken JSON into parseable output

Clean API fragments, JS-like objects, comments, and trailing commas into valid JSON that can be sent to JSON Formatter.

Supports TXT, Markdown, or JSON text files up to 1MB. The file is read into the input box and is not sent automatically.