The problem Usually transliteration libraries handle only transformation of non-Latin letters into Latin/English letters, e. g. : Chinese / Japanese / Korean / Hindi / Arabic / Greek / Russian > Latin / English This is only one side of transliteration which is called romanization .
Source: [Dev.to](https://dev.to/siffash/jsts-library-for-transliterating-between-50-most-popular-languages-2450-combinations-162l)