hl-switcher is a free Chrome add-on developed by terasawan that allows users to easily switch the "HL" (host language) option on Google websites. With this add-on, users can effortlessly change the language settings on Google search, Gmail, Google Maps, and other Google services.

The hl-switcher add-on is a convenient tool for those who frequently use Google services in different languages or need to access content that is only available in specific languages. By simply installing this add-on, users can quickly switch between different host languages without the need to manually change settings or navigate through complicated menus.

Overall, hl-switcher is a useful Chrome add-on that simplifies the process of switching the HL option on Google websites. It provides a straightforward solution for users who require language flexibility when using Google services.