When I read online in English or Japanese, I kept finding words I wanted to learn later. Copying them into a note broke my reading, so I built a browser extension: select the text, press a shortcut, and it’s translated into Chinese and saved to Notion to review later.
I asked AI not to write any code until the plan was locked, and I confirmed each decision before we moved on. Three choices shaped the tool:
Select any text on a page and press Ctrl+Y. A card shows the original, how to say it, and the translation. Save it to Notion, or click anywhere outside to close it.
No duplicates. If a word is already saved, the button turns off and says so. It ignores capital letters and extra spaces when comparing.
Hear it and read it. English shows IPA, Japanese shows hiragana, and a play button reads it out with the browser's built-in voice.
As my own user, what I cared about most was not breaking my reading. Almost every decision came back to that: a shortcut instead of a menu, and a card I can close with one click.
