Chrome extension · YouTube
LoopLab for Chrome
Your ears hear it. Your brain learns it.
Loop any sentence of a YouTube video, hear what native speakers really say, and save the phrases your brain is still learning.
Loop exactly what you missed
- ●Press , (comma) to loop the line playing right now; press again to release
- ●Click a line's time stamp, or a start word and an end word for a phrase loop
- ●Set A and B by hand and fine-tune by 0.1 s
- ●Arrow keys jump between subtitle lines; . restarts the current line
Understand every word
- ●Hover a word for its meaning, including base forms (Abzügen → Abzug)
- ●On-device translation of the word and the whole line
- ●Shift+click a word to pause and hear it read aloud, slowly on a second press
- ●Hearing tips for frequent German words (how "einem" or "der" really sound)
Keep and review
- ●Save loops with their subtitle text and star favorites
- ●Review plays your saved loops one after another, N times each
- ●Search the video's subtitles, your loops, and your notes
- ●Export subtitles, Anki CSV, Markdown, and a full backup
How micro shadowing works
Once your brain knows the pattern, you can hear it.
Hear
Watch a YouTube video in the language you're learning, with subtitles on. When a phrase goes by too fast, stop there.
Loop
Loop exactly that line, phrase, or word. Shorter is better: micro shadowing works in small pieces.
Learn the pattern
See the words, hear them read clearly, then listen again at native speed until it clicks.
Free now. Pro coming later.
Free
All features: loops, dictionary, translation, read-aloud, search, review, export, and backup.
Pro (coming soon)
Unlimited saved loops and daily review for learners who practice every day. Your loops always stay yours, and backup stays free.
Install from the Chrome Web Store. Get notified about Pro · Ask a question.
Questions
Which videos does it work with?
YouTube videos with subtitles (CC), in any language. Word meanings and pronunciation tips are richest for German and English.
Is it free?
Yes. Everything is free right now. A Pro version with unlimited saved loops and review is planned; existing loops will always stay yours.
Where is my data stored?
In your browser only. No account, no server, no analytics. See the privacy policy for the word lookups that use Wiktionary.
Does it work on Netflix?
Not yet. LoopLab runs on YouTube today.