# intlify/vue-i18n

Vue I18n for Vue 3

Repository: https://github.com/intlify/vue-i18n
Canonical: https://ross.abutalabs.com/products/intlify-vue-i18n
Homepage: https://vue-i18n.intlify.dev
Language: TypeScript
License: MIT
License Family: permissive
Topics: i18n, internationalization, library, plugin, vue, vue3, vuejs
Last push: 2026-08-26T12:22:18+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 2432, "days_push": 7, "days_rel": 8, "gap_med": 5, "n_releases_24m": 58}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2712, forks 390 (observed 2026-08-28T04:07:11.910099+00:00)

## What it is
Vue I18n is the official internationalization plugin for Vue 3, providing translation, pluralization, number and datetime localization with a component-oriented API. It includes a lightweight variant (petite-vue-i18n) and supports both Composition and legacy API styles.

## Use cases
- translate a vue 3 app into multiple languages
- add i18n to vue single file components
- handle pluralization and date formatting per locale
- switch locales dynamically in a vue app
- manage locale messages in vue components
- localize numbers and datetimes in vue

## When to choose
- you are building a Vue 3 application that needs multilingual support
- you want component-oriented locale message management in SFCs
- you need pluralization, number, and datetime localization out of the box

## When to avoid
- you are using Vue 2 (use vue-i18n v8 instead)
- your project is not built on Vue.js
- you need framework-agnostic i18n without Vue integration

## Facets
- artifact type: library
- maturity: stable
- function: internationalization, plugin-system, templating
- domain: web-development, frontend
- platform: browser
- tags: vue, vue3, i18n, translation, locale-messages, pluralization, localization, nodejs, web-server

## Member repositories
- intlify/vue-i18n (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:11.910099+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 2026-08-30T02:15:33.428524+00:00, confidence not recorded.
  - readme: https://github.com/intlify/vue-i18n (fetched 2026-08-28T04:07:11.910099+00:00, sha 3236906c91bb)
  - homepage: https://vue-i18n.intlify.dev (fetched 2026-08-29T09:59:00.437987+00:00, sha 1e0f29c5141b)
  - site_page: https://vue-i18n.intlify.dev/guide/installation.html (fetched 2026-08-29T09:59:00.446985+00:00, sha b76d1fdb6ac5)
- Data as of 2026-08-30T08:39:29.467469+00:00.