Choose a video
Open a lesson from your YouTube or Bilibili learning library.
Video-first language learning
Learn languages through videos you actually want to watch.
Turn real YouTube and Bilibili videos into focused, sentence-by-sentence lessons with two languages, pronunciation, and playback that stays in sync.
Two-language learning
Synced subtitles
Progress that follows you
Time
Language 1Vietnamese
Language 2English
Đây là một ví dụ.Pronunciation appears with the language that has it.
This is an example./ðɪs ɪz ən ɪɡˈzæmpəl/
Bạn có thể học theo từng câu.
You can learn sentence by sentence.
Simple by design
How Buzza works
Go from a video you like to an active language lesson in three clear steps.
Choose two languages
Pick any available pair. Language 1 and Language 2 have equal roles.
Learn sentence by sentence
Follow the active line, replay what matters, and keep your attention on the language.
Built for real listening
Study the language inside the video, not around it.
Two languages, no fixed “original” side
Language 1 and Language 2 are equal. Switch between the language pair available for the lesson without forcing one column to be “original” or “translation”.
Vietnamese↔English
Click a sentence to seek
Jump directly to the moment you want instead of scrubbing through the video.
Active sentence follows playback
The active sentence stays visually clear while the video moves forward.
Pronunciation where it belongs
When a language has pronunciation or IPA, it appears directly beneath that language instead of in a separate disconnected column.
Subtitle placement that fits your focus
Use subtitles below the player or as an overlay while keeping the learning transcript close at hand.
Return without losing your progress
Continue Learning and progress indicators make it easier to pick up where you stopped across a growing library.
Your learning space
A Library made for more than saving videos.
Search, filter, sort, continue learning, and see progress without turning your study list into a crowded feed.
- Search and filter lessons
- Continue Learning at a glance
- See source and progress on every card
YouTube
Chinese story
42% complete
Bilibili
Everyday English
71% complete
YouTube
Short dialogue
18% complete
12 episodesCity StoriesChinese · English
01First meetingCompleted✓
02A new planContinue · 56%▶
03At the station8 min→
Keep the story moving
Series keep episodes in learning order.
Group related videos together, see where you are, and move naturally to the next episode instead of searching again.
- Clear episode sequence
- Series-level progress
- Easy continuation into the next lesson
Ready when your next video is
Start Learning
Turn every video into a language lesson.
Choose a video, choose two languages, and start learning from the sentences you hear.