JSON range array

Client

Generate index or ID sequences without leaving the JSON hub.

Learn more: ranges

Step defaults to 1; supports decreasing ranges with negative step.

Local processing

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

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Nearby workflows on Toolcore

  • JSON repeat array — Repeat a root JSON array N times—non-negative count, browser-only. once JSON text parses on this page.
  • JSON pad array — Extend a JSON array with null until it reaches a target length—truncate if longer. 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.
  • JSON array length — Return the length of a root JSON array—simple metadata, local. once JSON text parses on this page.

Common use cases

  • Generate index or ID sequences without leaving the JSON hub.
  • Paste valid JSON, then read the transformed output below.

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.