Master Languages
Through Immersion
Transform everyday browsing into powerful language learning
How it works
Seamlessly integrated into your browsing experience
Instant translation at your fingertips
Hover over any word and instantly see beautiful, detailed definitions with pinyin, tone markers, and pronunciation. Learn vocabulary in real context without breaking your flow.
- Detailed definitions with pronunciation
- One-click save to Anki flashcards
- Mark words as known to track progress
- •to study; to learn
- •to emulate
Learn from videos
Watch YouTube with interactive subtitles that auto-load in your target language. Hover over any word for instant lookup and seamless vocabulary learning.
今天我们要学习中文
Subtitles
欢迎来到我的频道
今天我们要学习中文
这是一个很好的方法
通过看视频学习语言
你可以点击任何词
来查看它的定义
Helios
Beautiful vocabulary manager
Review your learned words with a gorgeous interface that makes studying feel effortless. Track your progress and manage your vocabulary with ease.
- Track total words learned in real-time
- Review recent vocabulary with definitions
- Manage and remove words with one click
Powerful features
Everything you need to master a new language through immersion
Real-time Dictionary
Instant lookups with detailed definitions, pronunciation, and examples
Anki Integration
One-click flashcard creation synced directly to your Anki deck
Progress Tracking
Live statistics showing vocabulary growth and comprehension
Smart Highlighting
Automatically highlights known, learning, and new words
Beautiful Design
Golden-hour aesthetic that makes learning visually delightful
Zero Friction
Works seamlessly on any website without disrupting your flow
Ready to start learning?
Join thousands of learners mastering languages through immersion