DuSubs

Learn languages by watching YouTube with dual subtitles

Save words as you watch, review them later. The extension adds Chinese, Japanese, and more subtitle tracks alongside your video — tap any word to save it.

(coming soon)
Dual subtitles

See your target language and English simultaneously — no more pausing to look things up.

One-tap save

Click any word in the subtitles to save it with its sentence and video timestamp.

Review anywhere

Your saved words sync here so you can study them as flashcards or export to Anki.