The problem
learn German with YouTube subtitles
YouTube is full of real German input, but pausing to translate words and copying them into another app breaks the flow. Most useful words disappear after the video ends.
German learning with YouTube
Learn German from YouTube subtitles without losing useful words.
SubLex helps German learners watch real YouTube videos, understand captions in context, save useful words, and review them later.
A simple YouTube study loop
Watch → Understand → Save → Practice
SubLex keeps the learning loop close to the YouTube video, then moves saved vocabulary into your personal dictionary and cards.
How the workflow feels
Watch with dual subtitles
Keep the German caption visible while reading the translated line underneath.
Hover words in context
Open quick word details only when you need meaning, part of speech, or examples.
Save and practice later
Send useful words to your dictionary, then review them with cards after watching.
FAQ
Before you install
Can I use SubLex for German videos?
Yes. Open a YouTube video with captions, choose your translation language, and use SubLex while watching.
Does it replace German study apps?
No. SubLex is designed as a lightweight companion for real videos, listening practice, and vocabulary capture.
Can I save German words?
Yes. Saved words go into your dictionary and can be reviewed later with practice cards.