i18n-locales by ladjs

A simple i18n middleware for Express.js. Maintained by koalazak on GitHub, where it has earned 57 stars from the community.

node.js + mongodb ，nuxt-elm. Maintained by EasyTuan on GitHub, where it has earned 83 stars from the community.

i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Maintained by i18next on GitHub, where it has earned 170 stars from the community.