# reatom/reatom

Reatom - the ultimate state manager

Repository: https://github.com/reatom/reatom
Canonical: https://ross.abutalabs.com/products/reatom
Homepage: https://reatom.dev
Language: TypeScript
License: MIT
License Family: permissive
Topics: state-management, state, reatom, store, flux, reactive, reactivity, reactive-programming, react, state-manager
Last push: 2026-08-19T10:09:34+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 98, release rhythm 82, longevity 100
- inputs: {"age_days": 2678, "days_push": 14, "days_rel": 43, "gap_med": 0, "n_releases_24m": 102}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1364, forks 141 (observed 2026-08-28T04:04:31.029640+00:00)

## What it is
Reatom is a reactive state management library for TypeScript and JavaScript, built on a few core primitives (atom, computed, action, effect). It is framework-agnostic with adapters (e.g. React) and emphasizes small bundle size, async effects handling, and debugging with cause tracking.

## Use cases
- manage application state in a React SPA
- replace Redux with a lightweight reactive store
- handle async data fetching with caching and cancellation
- build small reusable widgets with shared reactive state
- derive computed values from reactive state
- debug complex async state flows with cause tracking

## When to choose
- you want a tiny (~2 KB) state manager with strong TypeScript inference
- you need fine-grained reactive updates without proxies
- your app has complex async flows needing cancellation and retries
- you want framework-agnostic state with React or other adapters

## When to avoid
- you need a batteries-included framework with routing and data layers built in
- your team prefers proxy-based reactivity like Vue or MobX
- you are working outside the JavaScript/TypeScript ecosystem

## Facets
- artifact type: library
- maturity: active
- function: state-management
- domain: frontend, web-development
- platform: browser, cross-platform
- tags: reactive-programming, react, typescript, flux, atomization, async-effects, nodejs

## Member repositories
- reatom/reatom (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:31.029640+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 2026-08-30T04:41:22.238272+00:00, confidence not recorded.
  - readme: https://github.com/reatom/reatom (fetched 2026-08-28T04:04:31.029640+00:00, sha 7edf358bf455)
- Data as of 2026-08-30T08:39:29.467469+00:00.