YouTube Kana is a free Chrome add-on designed to enhance the viewing experience of Japanese-language content on YouTube. It achieves this by adding phonetic annotations, specifically hiragana, to Japanese subtitles. This feature is particularly beneficial for learners of the Japanese language, as it helps bridge the gap between spoken and written forms of the language.

The add-on seamlessly integrates with YouTube, allowing users to watch videos while simultaneously improving their reading skills. By displaying hiragana alongside kanji, YouTube Kana supports users in recognizing and understanding the pronunciation of words, making it a valuable tool for both students and language enthusiasts alike.