i18next
The core framework that is required for any additional library (react-18next, next-i18next, etc.). I18next handles…
splitting translations into multiple files
Options what to load and how to fallback depending on language.
Support for objects and arrays
Full control over management of the translations stored.
Rich system of events to react on changes important to your application.
Freedom of i18n formats - prefer ICU? Just use i18next-icu plugin.
react-i18next
An internationalisation framework which is based on i18next. It is used together with i18next to provide:
useTranslation hook
<Trans> component
next-i18next
next-i18next is used on top of i18next and react-i18next. It uses features from both frameworks. Features such as the useTranslation hook come from react-i18next, but need to be imported from next-i18next. Next-i18next adds functionality to support SSG/SSR.
Why next-i18next?
Easy to implement