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Browser extension

Download Constella

Chrome / Edge / Brave / Arc — load as an unpacked extension.

Download constella-extension.zip

Manifest V3

Step by step

Install

  1. 01Unzip the file. You'll get a constella-extension folder.
  2. 02Open chrome://extensions in your browser.
  3. 03Toggle Developer mode on (top-right).
  4. 04Click Load unpacked and select the unzipped folder.
  5. 05Pin the Constella icon in the toolbar for quick access.

Capture

Use

  1. 01Click the Constella icon → Full page or Select area.
  2. 02Annotate with pen, highlighter, shapes, or text.
  3. 03Done saves a PNG. Copy puts it on your clipboard.

Chrome blocks extensions from capturing chrome:// pages and other extension pages.

Free for everyone to try.

Try Constella free