Helios
Master languages through immersion
Transform your everyday browsing into powerful language learning. Helios seamlessly integrates vocabulary, grammar, and context into the content you already love.
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
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
Use Helios with Videos
Learn from your favorite shows and movies with subtitle support
Install ASB Player
To use Helios with video content, you'll need the ASB Player subtitle extension
Download ASB PlayerWatch the Setup Tutorial
Follow this step-by-step video guide to set up ASB Player with Helios
Watch TutorialPowerful 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