JSON repeat array
ClientExpand pattern arrays for load tests or template expansion.
Learn more: repeating arrays
Count 0 yields an empty array.
Local processing
Parsing and output formatting run entirely in your browser—nothing is uploaded for this transform.
Input
?
Nearby workflows on Toolcore
- JSON concat arrays — Flatten one level: concatenate arrays from a JSON array-of-arrays—client-side. 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 chunks — Split a JSON array into fixed-size batches or merge nested arrays into one list—pagination and bulk helpers, client-side. once JSON text parses on this page.
Common use cases
- Expand pattern arrays for load tests or template expansion.
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.
JSON concat arrays
ClientFlatten one level: concatenate arrays from a JSON array-of-arrays—client-side.
JSON pad array
ClientExtend a JSON array with null until it reaches a target length—truncate if longer.
JSON formatter
ClientJSON format online: pretty-print, minify, validate, escape, download .json.
JSON array chunks
ClientSplit a JSON array into fixed-size batches or merge nested arrays into one list—pagination and bulk helpers, client-side.