JSON Key Picker

Summary

Paste a JSON object or array and pick exactly the keys you want to keep — get a clean filtered result in one click.

How it works

1. Paste or type your JSON into the input panel on the left.
2. Enter the key names you want to keep, separated by commas.
3. The tool validates the JSON and extracts the matching keys.
4. The filtered JSON appears in the output panel on the right.
5. Click "Copy Result" to copy the output to your clipboard.

Use cases

• Strip sensitive fields from an API response before sharing.
• Reduce a large JSON payload to only the fields your app needs.
• Quick-prototype a slimmer data shape during development.
• Extract a consistent subset from each item in a JSON array.
• Clean up debug output by hiding irrelevant keys.
• Compare two objects by looking at the same subset of fields.

Frequently Asked Questions