One connected language-learning toolkit

One place to learn from everything you watch and read.

Look up unfamiliar language, hear it used, save what matters, and review it later across videos, webpages, and books.

Watch, browse, or readUnderstandHear it usedSaveReview

A complete learning loop

Every tool leads back to what you want to remember.

Discover a word in a video, webpage, or book. Understand it in place, explore how real speakers use it, then carry it into one vocabulary library and review system.

01

Understand anywhere

Look up words in place.

Get a concise definition, translation, and pronunciation from any webpage. Keep reading instead of opening another tab.

Explore word lookup
TubeLingo word definition and translation popover
02

Real usage

Hear how people actually say it.

Search a word and compare it across real YouTube clips. Learn its pronunciation, rhythm, and meaning in context.

Explore real examples
TubeLingo showing a word with pronunciation and real YouTube usage examples
03

Your vocabulary

Keep what matters.

Save useful words wherever you find them. Review later with the meaning and real context still attached.

Explore vocabulary review
Ready to review12 words
FROM A REAL EXAMPLEflurry

A sudden, brief period of activity.

AgainHardGoodEasy
04

Your books

Read without breaking the story.

Open an EPUB, look up unfamiliar words in place, and listen to a sentence when you need it. Save useful vocabulary as you read.

Explore the reader
TubeLingo EPUB reader with in-place word lookup and reading controls
05

YouTube

Follow every line.

See the original and translation together in the video and transcript. Look up words and save them into the same learning system.

Explore the YouTube extension
TubeLingo bilingual English and Chinese captions on YouTube

Your words, one learning system

Build a vocabulary from the content that matters to you.

Open TubeLingo