DemoMarker

Draw annotations on web pages with arrows, boxes, and circles

DemoMarker lets you draw directly on any webpage. Highlight what matters during live demos, presentations, walkthroughs, and screen sharing — without screenshots or editing tools. Perfect for presales demos, product walkthroughs, training sessions, and stakeholder reviews, DemoMarker gives you simple visual annotation tools right inside the browser. What you can do: Draw arrows to guide attention Highlight sections with boxes Emphasize areas using circles Switch colors instantly Clear everything with one click Built for live demos Works on any website Clean floating toolbar that stays out of the way Fast keyboard shortcuts for smooth presenting Annotations stay visible during screen sharing Nothing is saved or uploaded Keyboard shortcuts A – Arrow B – Box C – Circle P – Exit drawing mode H – Hide or show the toolbar Delete / Backspace – Clear all annotations Privacy-first DemoMarker runs entirely in your browser. No accounts. No tracking. No data collection. If you present, explain, teach, or sell — DemoMarker helps you show, not just tell.