An open-source screen annotation tool built with web technology.
DrawPen lets you draw and highlight directly on your screen without interrupting your workflow. Use it during calls, demos, lessons, or live-coding to visually explain ideas in seconds. Toggle the overlay anytime and annotate on top of any app with simple, intuitive tools.
Adjust everything to match your preferred way of working with flexible settings. Fine-tune shortcuts, tools, and behavior so the overlay responds exactly how you expect. Set it up once — and enjoy a workflow that feels natural and effortless.
Pointer Mode keeps DrawPen ready while staying out of your way. Keep a compact control on screen, switch back to Draw Mode in one click, and move between explaining and annotating without hiding the app or interrupting what you are doing.
Annotate your screen — all in one simple tool designed for clear and effective presentations.