FrenchKiss.js
The blazing fast lightweight internationalization (i18n) module
FrenchKiss.js is a blazing fast lightweight i18n library written in JavaScript, working both in the browser and NodeJS environments. It provides a simple and really fast solution for handling internationalization. FrenchKiss is by now, the fastest i18n JS package out there, working 5 to 1000 times faster than any others by JIT compiling the translations, try it by running the benchmarks.