# amannn/next-intl

🌐 Internationalization (i18n) for Next.js

Repository: https://github.com/amannn/next-intl
Canonical: https://ross.abutalabs.com/products/next-intl
Homepage: https://next-intl.dev
Language: TypeScript
License: MIT
License Family: permissive
Topics: react, next, i18n, date-formatting
Last push: 2026-08-26T15:01:41+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 2112, "days_push": 7, "days_rel": 16, "gap_med": 4, "n_releases_24m": 80}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4354, forks 380 (observed 2026-08-28T04:08:46.420196+00:00)

## What it is
next-intl is an internationalization (i18n) library for Next.js that provides translations, ICU message formatting, date/number localization, and internationalized routing. It offers a type-safe, hooks-based API that works across App Router, Pages Router, Server Components, and static rendering.

## Use cases
- add multiple languages to a next.js app
- translate react components with type-safe message keys
- format dates and numbers per locale in next.js
- localize pathnames for seo in next.js
- handle plurals and rich text with icu message syntax
- set up i18n routing with middleware in next.js app router

## When to choose
- you are building a Next.js app (App Router or Pages Router) that needs multilingual support
- you want type-safe translation keys and compile-time typo detection
- you need locale-aware date, time, and number formatting without server/client mismatches
- you want localized routing and per-language pathnames

## When to avoid
- your project is not built on Next.js or React
- you need i18n for a plain Node.js backend or non-web application
- you only need simple string replacement without locale formatting or routing

## Facets
- artifact type: library
- maturity: stable
- function: internationalization, templating, routing, form-handling
- domain: web-development, frontend
- platform: cross-platform
- tags: nextjs, react, i18n, icu-messages, app-router, type-safe-translations, date-formatting, localization, nodejs, web-server

## Member repositories
- amannn/next-intl (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:46.420196+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 2026-08-29T18:21:30.647613+00:00, confidence not recorded.
  - readme: https://github.com/amannn/next-intl (fetched 2026-08-28T04:08:46.420196+00:00, sha fbc0dc285872)
  - homepage: https://next-intl.dev (fetched 2026-08-29T09:10:18.228185+00:00, sha 42d664b4612b)
  - site_page: https://next-intl.dev/docs/getting-started (fetched 2026-08-29T09:10:18.238303+00:00, sha df92f9a5cacc)
  - site_page: https://next-intl.dev/docs (fetched 2026-08-29T09:10:18.240193+00:00, sha c62e572372df)
- Data as of 2026-08-30T08:39:29.467469+00:00.