Language immersion extension · Fluidity family
One extension for what you watch and read
Submersion connects video immersion, interactive webpages, a saved reading library, vocabulary collection and guest review in desktop Chrome.
Start with real content
Watch Netflix or YouTube, submerge an article in place, or import a text into Reader. Click unfamiliar words for meanings and available readings; translate a sentence when you need it.
Keep learning connected
Keep useful vocabulary with local source context, find it in Kept, and export CSV or Anki-compatible TSV. Guests can review saved words locally. Signed-in review requires additional Fluidity authorization and is not currently activated in production.