Dual Subtitles for YouTube™ - Language Learning

Show two subtitles at once on YouTube: the original and a translation in 150+ languages. Free, no API key, no sign-up.

Watch YouTube with two subtitles at once: the original line and its translation, together on the video. Made for learning a language from the videos you already like. Dual subtitles use YouTube's own captions and YouTube's own translation into 150+ languages. No API key, no account, no sign-up, no limits. TWO SUBTITLES AT ONCE • The original subtitle and a translation on the video at the same time (bilingual subtitles) • Picks the language actually spoken, even when YouTube would show you another one • Auto-generated captions are joined into whole sentences, and the translation follows the same lines • Translate into any language YouTube offers; by default, the language you use YouTube in • Original on top or below, three text sizes, background darkness and height you can set LEARN WITH IT • Hover the subtitle and the video pauses, so you can read • Click any word: save it with its sentence, or look it up (Naver Dictionary for Korean speakers, Google Translate for everyone else) • My words: every saved word keeps its sentence, translation and a link back to the exact moment; search it, and export to Anki or CSV • Saved words are marked when they come up again in other videos • Keys: A previous line · S repeat this line · D next line • Pause after each line, and hide the translation until you hover it — try to understand first • Copy a line with its translation STAYS OUT OF THE WAY • Turn captions off with YouTube's CC button and the dual subtitles go too • Hidden during ads; keeps working in the miniplayer; leaves Shorts and live streams to YouTube • If YouTube ever limits caption requests, its own captions keep working and dual subtitles come back by themselves PRIVATE • Runs on youtube.com only • No data collection, no analytics, no ads; saved words stay in your browser • One permission: storage (your settings and saved words) Not affiliated with YouTube or Google. YouTube is a trademark of Google LLC.