JSON pad array
ClientPad batch slots for grid APIs or fixed-width vector placeholders in tests.
Learn more: padding arrays
Appends null values; if the array is longer than the target, it is truncated.
Local processing
Parsing and output formatting run entirely in your browser—nothing is uploaded for this transform.
Input
?
Nearby workflows on Toolcore
- JSON slice array — Take a slice of a JSON array by start and optional end index—like Array. once JSON text parses on this page.
- JSON wrap in array — Wrap any JSON value in a one-element array if it is not already an array—local helper. 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.
- JSON formatter — JSON format online: pretty-print, minify, validate, escape, download . once JSON text parses on this page.
Common use cases
- Pad batch slots for grid APIs or fixed-width vector placeholders in tests.
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 slice array
ClientTake a slice of a JSON array by start and optional end index—like Array.slice.
JSON wrap in array
ClientWrap any JSON value in a one-element array if it is not already an array—local helper.
JSON array chunks
ClientSplit a JSON array into fixed-size batches or merge nested arrays into one list—pagination and bulk helpers, client-side.
JSON formatter
ClientJSON format online: pretty-print, minify, validate, escape, download .json.