# Installation
### Direct Download / CDN
[https://unpkg.com/vuex](https://unpkg.com/vuex)
[Unpkg.com](https://unpkg.com) provides NPM-based CDN links. The above link will always point to the latest release on NPM. You can also use a specific version/tag via URLs like `https://unpkg.com/vuex@2.0.0`.
Include `vuex` after Vue and it will install itself automatically:
``` html
```
### NPM
``` bash
npm install vuex --save
```
### Yarn
``` bash
yarn add vuex
```
When used with a module system, you must explicitly install Vuex via `Vue.use()`:
``` js
import Vue from 'vue'
import Vuex from 'vuex'
Vue.use(Vuex)
```
You don't need to do this when using global script tags.
### Dev Build
You will have to clone directly from GitHub and build `vuex` yourself if
you want to use the latest dev build.
``` bash
git clone https://github.com/vuejs/vuex.git node_modules/vuex
cd node_modules/vuex
npm install
npm run build
```