LingoLines – Dual Subtitles for YouTube™

See YouTube subtitles in two languages at once. Learn a language while you watch. Free, no account, no API key.

Watch any YouTube video with subtitles in two languages at the same time: the original, and a translation right underneath. LingoLines is made for language learners, bilingual families, and anyone watching videos in a language they're still learning. Hear the original, read it, and see what it means, line by line. HOW IT WORKS • Install, open a YouTube video, press play. That's it. • Turn it on and off with YouTube's own CC button, like normal subtitles. • The first line shows the video's own subtitles or auto-captions. • The second line (in yellow) shows a translation in the language you pick. • Both lines stay in sync, sentence by sentence. FEATURES • Translate into 35 languages, including Spanish, French, German, Japanese, Korean, Chinese, Portuguese, Italian and Hindi • Works with human-made subtitles and auto-generated captions • Pick a different first line any time from YouTube's own subtitles menu • Put the translation on top or underneath, and choose the text size • Optional: use human translations when a video has them • Handles dubbed videos correctly: the first line follows the original audio PRIVATE BY DESIGN • No account, no sign-up, no API key • No tracking, no analytics, no ads • Runs only on youtube.com; its only other permission is saving your settings TIPS • Only works on videos that have subtitles or auto-captions (most do). • Click the LingoLines icon in your toolbar to change languages or turn it off. LingoLines is not affiliated with or endorsed by YouTube or Google.