Most tools either crop at the viewport, require you to scroll and stitch manually, or open a clunky desktop app just to annotate a single region. QuickShot solves this in the browser, instantly. One click captures the full page or any selected region, and a lightweight annotation layer lets you highlight, draw, and add text. It is built for designers reviewing layouts, developers sharing bugs, product managers giving feedback, and anyone who sends screenshots in their daily workflow.