LingLook is a Firefox browser extension designed to enhance your Chinese learning experience while browsing the internet. It allows users to instantly look up Chinese words by simply hovering over them on any webpage. The extension supports both simplified and traditional Chinese characters, offering detailed word definitions, pronunciation guides (including pinyin and zhuyin), and HSK/TOCFL levels. Users can also access extensive character information such as stroke order animations, frequency, and radicals, making it a comprehensive tool for language learners.

In addition to its core features, LingLook provides customizable settings for appearance and behavior, supports keyboard shortcuts, and allows quick word copying and Google Images searches. For mobile users, a puck interface simplifies word lookup with intuitive controls. This free and open-source extension is an excellent resource for anyone looking to improve their Chinese language skills while navigating the web.