# gajus/redux-immutable

redux-immutable is used to create an equivalent function of Redux combineReducers that works with Immutable.js state.

Repository: https://github.com/gajus/redux-immutable
Canonical: https://ross.abutalabs.com/products/redux-immutable
Language: TypeScript
License: NOASSERTION
License Family: other
Topics: redux, javascript, immutable, react
Last push: 2022-03-28T21:47:31+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4043, "days_push": 1619, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1867, forks 84 (observed 2026-08-28T04:05:46.356570+00:00)

## What it is
A small library that provides a drop-in replacement for Redux's combineReducers that works with Immutable.js state collections. It enables Redux stores whose state is an Immutable.Map or Record instead of a plain JavaScript object.

## Use cases
- combine redux reducers when state is an immutable.js map
- use immutable.js records as redux initial state
- fix createStore error with immutable initial state
- delegate default values to child reducers with immutable records
- migrate redux app to immutable state trees

## When to choose
- your Redux state is stored as Immutable.js collections
- you need combineReducers semantics with Immutable Maps or Records

## When to avoid
- your Redux state uses plain JavaScript objects
- you are starting a new project - modern Redux Toolkit and Immer make Immutable.js integration unnecessary

## Facets
- artifact type: library
- maturity: maintenance
- function: state-management, middleware
- domain: frontend, web-development, developer-tools
- platform: browser
- tags: redux, immutable-js, react, combinereducers, nodejs, javascript

## Member repositories
- gajus/redux-immutable (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:46.356570+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 2026-08-30T03:15:23.332434+00:00, confidence not recorded.
  - readme: https://github.com/gajus/redux-immutable (fetched 2026-08-28T04:05:46.356570+00:00, sha ef08bd3573e3)
  - registry_npm: https://registry.npmjs.org/redux-immutable (fetched 2026-08-29T10:54:28.694879+00:00, sha 1b61816579d4)
- Data as of 2026-08-30T08:39:29.467469+00:00.