navigator.languages will expose the Accept Languages and languageevent (fired on the Window object) will notify of a change in this value. The goal is to allow web applications to handle i18n on the client side, thus allowing offline applications to react to user language changes.



Specification link

Specification currently under development in a Working Group

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Last updated on 2020-11-09