JSON key count

Client

Width check on flat config objects before pick-keys workflows.

Learn more: key counts

Only top-level keys—does not recurse into nested objects.

Local processing

Parsing and output formatting run entirely in your browser—nothing is uploaded for this transform.

Input

?
Paste JSON, then read transformed output below.

Nearby workflows on Toolcore

  • JSON object keys array — List object property names as a JSON string array—Object. once JSON text parses on this page.
  • JSON unique key names — List every distinct object key in a JSON document—sorted alphabetically, local only. once JSON text parses on this page.
  • JSON statistics — Depth, key counts, object/array totals, and value-type breakdown—local only. once JSON text parses on this page.
  • JSON formatter — JSON format online: pretty-print, minify, validate, escape, download . once JSON text parses on this page.

Common use cases

  • Width check on flat config objects before pick-keys workflows.

Common mistakes to avoid

  • Invalid JSON

    Fix parse errors before expecting output.

FAQ

Is data uploaded?

No—all parsing and transforms run locally.

How is this different from jq?

This page focuses on one deterministic task without a filter language.

More tools

Related utilities you can open in another tab—mostly client-side.