Saegim Jamak — Add meaning without breaking immersion

Watch Korean YouTube without pausing. The meaning of Sino-Korean words and loanwords unfolds right on the subtitle.

Pause. Search. Come back — and the scene is already gone. Saegim Jamak removes that moment. On YouTube's Korean subtitles, it briefly unfolds each character's meaning and sound, in Hangul, right above Sino-Korean words and loanwords. The video never stops. No dictionary, no search box. King Sejong created Hangul because sound alone couldn't carry meaning. The same problem shows up in captions today — homonyms and loanwords are spelled perfectly, but the meaning still doesn't land. You choose what to watch. Saegim doesn't pick videos for you or ask you to memorize word lists. It isn't a flashcard app or a dictionary — it protects your immersion inside the video you're already watching. - Detects captions automatically when you open a video (does not work on videos with captions burned into the image) - One word per subtitle line — unlike dual-subtitle tools that keep two lines on screen, a hinge animation shows it only briefly and never blocks the picture - Word coverage is based on the National Institute of Korean Language's "Vocabulary List for Korean Learners" (words not on that list may not appear) - When a homonym's meaning can't be determined with confidence, it shows nothing rather than a wrong meaning