jsonpost
Comparison & Manipulation

JSON Key Extractor

Extract all unique keys, paths, or values from a JSON document as a simple list.

Runs entirely in your browser — your data never leaves your device.

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How to use this tool

  1. 1Paste your JSON into the editor.
  2. 2Choose to extract keys, full paths, or values.
  3. 3Copy the resulting list.

Frequently asked questions

Can it list full paths?
Yes. You can extract dotted paths to every leaf, which is great for understanding unfamiliar API responses.
Are duplicates removed?
Yes. The output is a unique, sorted list so you can audit the shape of large payloads quickly.
Is my data uploaded to a server?
No. Every tool on JSONPost runs entirely in your browser using JavaScript. Your JSON never leaves your device, so it is safe to use with private or sensitive data.

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