Learn Vocabulary from
YouTube Videos
AI-powered Chrome extension that extracts vocabulary from video subtitles, gives you context-aware definitions, and helps you track your learning progress.
Powerful Features
Everything you need to learn vocabulary effectively
AI-Powered Analysis
Advanced AI identifies important vocabulary based on your chosen difficulty level - beginner, intermediate, or advanced.
Context-Aware Definitions
Get word meanings explained in the context of the video you're watching, not generic dictionary definitions.
Timestamp Navigation
Jump directly to where each word appears in the video. Hear it used in real conversation.
Save & Track Progress
Save words you want to remember and mark them as mastered. Track your vocabulary growth over time.
Cloud Sync
Sign in with your Zillurl Account to sync saved words, notes, and membership access across all your devices.
Multi-Language Support
Learn from English, Japanese, Korean, Chinese, Spanish, French, and German content.
How It Works
Start learning vocabulary in seconds
Install the Extension
Add Zillurl Vocab to Chrome from the Web Store. It's free to get started.
Watch Any Video
Open any YouTube video that has subtitles in your target language.
Click to Analyze
Click the Zillurl Vocab button to let AI analyze the subtitles.
Learn & Save
Review vocabulary with definitions and save words you want to remember.
Supported Languages
Learn vocabulary from content in these languages
Start Learning Today
Turn your YouTube watching time into productive vocabulary learning.
Install Free Extension