Toktogi is a Chrome extension developed by the Stanford HCI Research Group. It is a popup Korean-English dictionary that provides instant definitions of Korean words when you hover your mouse over them.

With Toktogi, you can easily access the meanings of Korean words without leaving the webpage. Simply click the button in the toolbar to activate the extension. Once activated, you can hover over any Korean word on the page and Toktogi will display its definition and hanja.

This extension is a port of toktogi-plus, which was originally developed for a different platform. Now available for Chrome users, Toktogi offers a convenient and efficient way to quickly understand the meanings of Korean words while browsing the web.