LocalTubeMemo is a lightweight learning tool for taking timestamp‑linked notes, screenshots, and A–B loops while watching YouTube — all stored locally in your browser with zero accounts or uploads. Unlike AI‑driven note generators, LocalTubeMemo is built for people who learn better by thinking, observing, and annotating themselves. It helps students, developers, and researchers capture exactly the moments they want, stay focused, and build real understanding — privately and offline.