vuejs/pinia

---

vuejs/pinia.json

{
  "createdAt": "2019-11-18T21:05:01Z",
  "defaultBranch": "v3",
  "description": "🍍 Intuitive, type safe, light and flexible Store for Vue using the composition api with DevTools support",
  "fullName": "vuejs/pinia",
  "homepage": "https://pinia.vuejs.org",
  "language": "TypeScript",
  "name": "pinia",
  "pushedAt": "2025-11-17T13:01:04Z",
  "stargazersCount": 14331,
  "topics": [
    "composition-api",
    "ssr",
    "store",
    "vue",
    "vuex"
  ],
  "updatedAt": "2025-11-25T21:10:24Z",
  "url": "https://github.com/vuejs/pinia"
}

Pinia

Intuitive, type safe and flexible Store for Vue

• 💡 Intuitive
• 🔑 Type Safe
• ⚙️ Devtools support
• 🔌 Extensible
• 🏗 Modular by design
• 📦 Extremely light
• ⛰️ Nuxt Module

The latest version of pinia works with Vue 3. See the branch v2 for a version that works with Vue 2.

Pinia is the most similar English pronunciation of the word pineapple in Spanish: piña. A pineapple is in reality a group of individual flowers that join together to create a multiple fruit. Similar to stores, each one is born individually, but they are all connected at the end. It’s also a delicious tropical fruit indigenous to South America.

👉 Demo with Vue 3 on StackBlitz

👉 Demo with Nuxt 3 on StackBlitz

Help me keep working on this project 💚

• Become a Sponsor on GitHub
• One-time donation via PayPal

Gold Sponsors

Silver Sponsors

Bronze Sponsors

---

FAQ

A few notes about the project and possible questions:

Q: Is Pinia the successor of Vuex?

A: Yes

Q: What about dynamic modules?

A: Dynamic modules are not type safe, so instead we allow creating different stores that can be imported anywhere

Installation

# or pnpm or yarn
npm install pinia

Usage

Install the plugin

Create a pinia (the root store) and pass it to app:

// Vue 3
import { createApp } from 'vue'
import { createPinia } from 'pinia'
import App from './App.vue'

const pinia = createPinia()
const app = createApp(App)

app.use(pinia)
app.mount('#app')

For more detailed instructions, including Nuxt configuration, check the Documentation.

Create a Store

You can create as many stores as you want, and they should each exist in different files:

import { defineStore } from 'pinia'

// main is the name of the store. It is unique across your application
// and will appear in devtools
export const useMainStore = defineStore('main', {
  // a function that returns a fresh state
  state: () => ({
    counter: 0,
    name: 'Eduardo',
  }),
  // optional getters
  getters: {
    // getters receive the state as first parameter
    doubleCounter: (state) => state.counter * 2,
    // use getters in other getters
    doubleCounterPlusOne(): number {
      return this.doubleCounter + 1
    },
  },
  // optional actions
  actions: {
    reset() {
      // `this` is the store instance
      this.counter = 0
    },
  },
})

defineStore returns a function that has to be called to get access to the store:

import { useMainStore } from '@/stores/main'
import { storeToRefs } from 'pinia'

export default defineComponent({
  setup() {
    const main = useMainStore()

    // extract specific store properties
    const { counter, doubleCounter } = storeToRefs(main)

    return {
      // gives access to the whole store in the template
      main,
      // gives access only to specific state or getter
      counter,
      doubleCounter,
    }
  },
})

Documentation

To learn more about Pinia, check its documentation.

License

MIT