Selection Translate Demo

Try selecting any web text to pop a learning card

Selection translate is a LangKey browser extension feature
This page is a demo walkthrough. The selection bubble requires the LangKey extension installed in your browser; once installed, any selected English / Chinese / Japanese text on web pages will trigger the bubble.

How to Use

  1. Install the LangKey extension in your browser (Chrome / Edge / Firefox)
  2. Refresh any English or multilingual page (e.g. BBC / NYT / Medium)
  3. Select 1 word or a passage with your mouse — the LangKey learning card pops up
  4. The card shows AI translation + contextual examples + synonyms; click ★ to save to your vocabulary

Demo text (try selecting)

With the LangKey extension installed, selecting any part of the English text below will pop up a learning card. LangKey uses the ContextMenu API + Range API to capture selections and calls the AI engine to generate translation and examples.

The ephemeral beauty of cherry blossoms has long been a central motif in Japanese art and literature, symbolizing the transient nature of life itself.