Yama is a free browser extension designed for Chrome that assists users in acquiring Japanese vocabulary while browsing the web. It transforms any webpage into an interactive study tool by offering features such as instant dictionary lookups, word tracking, and integration with JPDB.io, enabling learners to immerse themselves in the language effectively. The extension is open-source, providing a valuable resource for those looking to enhance their Japanese reading skills without any cost.

Key features include instant dictionary lookups that display definitions and readings when hovering over Japanese words, customizable word tracking options, and AI sentence explanations. Users can also access on-page statistics to gauge the comprehensibility of content. With Yama, learners can effortlessly sync their vocabulary progress to JPDB.io, making it a comprehensive tool for mastering Japanese vocabulary.