JSON distinct rows by field

Client

Collapse duplicate keys in tabular JSON—pairs with unique-by and dedupe tools.

Learn more: distinct rows

Comparison uses JSON.stringify on the field value.

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 unique by field — Deduplicate JSON array rows by one field—keep first or last; local only. once JSON text parses on this page.
  • JSON unique field check — Test whether values in one column are unique—reports duplicates, local only. once JSON text parses on this page.
  • JSON dedupe array — Remove duplicate elements from a JSON array—first occurrence wins, order preserved. 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

  • Collapse duplicate keys in tabular JSON—pairs with unique-by and dedupe tools.

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.