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Jotai — compose React state from small independent atoms

OSS scale score 266.1OSS health 89Update pace 6 commits/30d
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Stars
21,275
Primary language
TypeScript
License
MIT
Repository last updated
Sep 17, 2026

Overview

Jotai is a React state-management library that models state as small atoms subscribed to only where needed. Primitive, derived, asynchronous, and write-only atoms share the same compositional model.

Features and best fit

Based on official documentation; not hands-on tested · Content checked:

Read and write primitive atoms through useAtom

Create a state unit with atom(0) and use useAtom to access its current value and setter from React components.

Sources: [2][3]

Express derived and asynchronous relationships between atoms

Derived atoms read other atoms through get, while async atoms can return promises and integrate asynchronous state into the same graph.

Sources: [2][3]

For splitting React application state into small reusable units

It fits applications that prefer feature-level state units and fine-grained subscriptions over a single monolithic global store.

Sources: [2]

Check the v3 runtime and TypeScript requirements

The current package requires Node.js 22.12+, React 18+, and type definitions intended for TypeScript 5.5+.

Sources: [4]

Official sources

  1. [1]pmndrs/jotai repository(2026-09-21)
  2. [2]Jotai README(2026-09-21)
  3. [3]Jotai documentation(2026-09-21)
  4. [4]jotai package(2026-09-21)
  5. [5]Jotai MIT license(2026-09-21)
Supplemental curator note

Jotai is currently 3.0.0. The package peers on React 18+ and its type definitions are structured around TypeScript 5.5+, while the Node engine requires 22.12.0+. The model favors small independently subscribed atoms and derived relationships instead of one large global state object.

Try it in 3 steps

  1. 1

    Install Jotai

    Add Jotai to a React project using the minimal README installation path.

    npm i jotai
  2. 2

    Create a primitive atom

    Define a small independent unit of application state.

    const countAtom = atom(0)
  3. 3

    Use the atom from a component

    Subscribe from a component and update the atom through its setter.

    const [count, setCount] = useAtom(countAtom)
Check the official README

Growth

Growth trends · Last 30 days

21,275 Stars

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Development activity

Last 90 days · weekly

Commits (last 30 days)
6
Open PRs
1

Development activity is still being collected.

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GitHub data

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GitHub Topics

  • react
  • state
  • management
  • atomic
  • hacktoberfest
Stars
21,275
Forks
725
Watchers
68
Open issues
1
Contributors
240
Primary language
TypeScript
License
MIT
Repository last updated
Sep 17, 2026
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