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NMSnabbit.

JSON Keys Extractor

Lists every unique key in a JSON object. Free, instant and 100% private in your browser.

Developer Tools Runs in your browser

What does JSON Keys Extractor do?

Lists every unique key in a JSON object. Paste your json on the left and NMSnabbit instantly shows the keys on the right. Everything runs locally in your browser — nothing is uploaded, so it stays private and works offline. You can process several values at once and copy the result with one click.

How to use the JSON Keys Extractor

  1. 1 Type or paste your json into the input box.
  2. 2 The keys appears instantly in the output box as you type.
  3. 3 Enter several values separated by spaces or new lines to process them at once.
  4. 4 Click “Copy output” to copy the result.

What you can use it for

  • Quickly lists every unique key in a json object without installing anything.
  • Checking results while learning or teaching how json and keys relate.
  • Preparing or debugging data for programming, electronics or homework.
  • Working privately when the data shouldn't be uploaded to a server.

Frequently asked questions

How do I use JSON Keys Extractor?
Paste your json into the input field above. JSON Keys Extractor runs instantly in your browser and shows the keys on the right — no button to press and nothing uploaded.
Is JSON Keys Extractor free and private?
Yes. JSON Keys Extractor is completely free with no sign-up, and it runs entirely client-side in your browser, so your data never leaves your device.
Can I process more than one value at once?
Yes. Enter several values separated by spaces or new lines and each one is handled independently, so you can batch-process in a single pass.

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