Vue web analytics installation

Install the package

Required

Install the PostHog JavaScript library using your package manager:

npm install posthog-js
yarn add posthog-js
pnpm add posthog-js

Vue version

This guide is for Vue 3 and above. For Vue 2.x, see our Vue docs.

Create a composable

Required

Create a new file src/composables/usePostHog.js:

src/composables/usePostHog.js
import posthog from 'posthog-js'

export function usePostHog() {
  posthog.init('<ph_project_api_key>', {
    api_host: 'https://us.i.posthog.com',
    defaults: '2026-01-30'
  })

  return { posthog }
}

Import in your router

Required

In router/index.js, import the usePostHog composable and call it:

router/index.js
import { createRouter, createWebHistory } from 'vue-router'
import HomeView from '../views/HomeView.vue'
import { usePostHog } from '@/composables/usePostHog'

const router = createRouter({
  history: createWebHistory(import.meta.env.BASE_URL),
  routes: [
    {
      path: '/',
      name: 'home',
      component: HomeView,
    },
    {
      path: '/about',
      name: 'about',
      component: () => import('../views/AboutView.vue'),
    },
  ],
})

const { posthog } = usePostHog()

export default router

Send events

Click around and view a couple pages to generate some events. PostHog automatically captures pageviews, clicks, and other interactions for you.

If you'd like, you can also manually capture custom events:

JavaScript
posthog.capture('my_custom_event', { property: 'value' })

5
Next steps
Recommended
After installing PostHog and ensuring autocapture is enabled, head to your web analytics dashboard to see your data. And then check out our getting started guide.
PostHog tip: Web analytics works with anonymous events. This means if you are primarily using PostHog for web analytics, it can be significantly cheaper for you.

Vue web analytics installation

Install the package

Create a composable

Import in your router

Send events

Next steps

Community questions

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