Video-aware
The overlay follows YouTube watch pages and reloads when you move to another video.
Turn watch time into language time
YouTube subtitles, now bilingual.
Watch videos with translated subtitles synchronized over the player, while keeping the original language close at hand.
Every language gives you a new perspective.
Mỗi ngôn ngữ mang đến cho bạn một góc nhìn mới.Built for momentum
Less switching. More understanding.
BothLang discovers a video's available subtitle track, translates it, and keeps the overlay synchronized as you watch.
Two-language context
Follow the meaning while still hearing and seeing the language used in the video.
Readable your way
Subtitle appearance responds to the extension's saved viewing preferences.
Three quick moves
How it works
A small interaction that fits naturally into the browser you already use.
- 01
Enable YouTube subtitles
Choose your target language in BothLang and keep the subtitle feature enabled.
- 02
Open a YouTube video
Visit a watch page that has an available subtitle or caption track.
- 03
Press play
BothLang prepares the translated track and displays it in sync with the video.
Made for the beautifully curious.