Let Lumi watch the video with you
Pick your browser and add it in one click. Free, no sign-up, installs in a minute.
After installing
1
Pin to your toolbar
Click the extensions icon and pin Lumi so it's always one click away.
2
Open a video
Open any video on YouTube or Bilibili — Lumi appears on the side automatically.
3
Start using it
Read the summary, turn on bilingual subtitles, and ask Lumi anything.
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Browser
Chrome / Edge & other Chromium
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Privacy-first
Processes video only when needed
⚡
Lightweight
Won't slow your browser down