구슬펜 guseul pen

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Browser extension

Once it is installed, selecting a line on any page pops up a small button. Click it and the line is kept in guseul pen. Kept lines stay in your browser; nothing is uploaded.

or install it by hand

Download the extension (.zip)
  1. 1Download the zip above and unzip it.
  2. 2In Chrome, open chrome://extensions from the address bar.
  3. 3Turn on Developer mode, top right.
  4. 4Click “Load unpacked” and pick the folder you just unzipped.

The extension only uses local storage. It sends nothing over the network and does not watch your browsing. Lines you keep show up here under Kept lines.