# paularmstrong/normalizr

Normalizes nested JSON according to a schema

Repository: https://github.com/paularmstrong/normalizr
Canonical: https://ross.abutalabs.com/products/normalizr
Language: JavaScript
License: MIT
License Family: permissive
Topics: normalizr, redux, javascript, json, reactjs, flux, normalize, api
Archived: true
Last push: 2022-03-19T22:44:12+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4396, "days_push": 1628, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 20802, forks 857 (observed 2026-08-28T04:11:30.422019+00:00)

## What it is
Normalizr is a JavaScript library that normalizes deeply nested JSON according to a schema, flattening API responses into entities keyed by ID. It also supports denormalization back to nested structures, and is commonly used with Redux and Flux state management.

## Use cases
- normalize nested JSON API responses for Redux store
- flatten deeply nested API data into entities by id
- denormalize normalized entities back into nested JSON
- deduplicate repeated objects in API payloads
- manage relational data in a Flux application
- reduce re-render costs by storing entities by id

## When to choose
- you have deeply nested API responses with repeated entities to flatten
- you use Redux or Flux and need relational entity storage
- you need a stable, battle-tested normalization library

## When to avoid
- starting a new project needing active maintenance and support
- you need new features or bug fixes from upstream
- modern data-fetching libraries like RTK Query already handle normalization

## Facets
- artifact type: library
- maturity: abandoned
- function: serialization
- domain: frontend, web-development, developer-tools
- platform: browser
- tags: redux, flux, normalize, denormalize, api-responses, state-management, nodejs, javascript

## Member repositories
- paularmstrong/normalizr (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:30.422019+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:58:32.756343+00:00, confidence not recorded.
  - readme: https://github.com/paularmstrong/normalizr (fetched 2026-08-28T04:11:30.422019+00:00, sha dca4c42e720c)
  - registry_npm: https://registry.npmjs.org/normalizr (fetched 2026-08-29T07:57:25.385831+00:00, sha e2e6f4be009c)
- Data as of 2026-08-30T08:39:29.467469+00:00.