JSON Studio

Fix Invalid JSON from AI, APIs & Logs

Extract JSON from logs and AI/API output, repair common syntax mistakes, and copy clean valid JSON. Everything runs locally in your browser.

Messy JSON / Log Input

Paste broken JSON, an API response, or log text...

Clean JSON

Ready to repair

Paste broken JSON or a log response on the left.

Repair JSON from AI responses, logs, and APIs

Use this tool when JSON is surrounded by log text or contains common copy-paste mistakes such as trailing commas, single quotes, unquoted keys, or Python-style booleans. The repaired result is generated locally and is never uploaded.

How it works

  1. Paste the complete response or log line.
  2. JSON Studio extracts the object or array and repairs safe, common syntax errors.
  3. Copy the clean JSON into your application, debugger, or API client.

Frequently Asked Questions

Yes. The tool searches surrounding text for a JSON object or array before repairing it.
No. Extraction and repair happen entirely in your browser.

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