Epic Pen allows users to draw or write on any open program on their Windows computer seamlessly, without disrupting their workflow. Compatible with digital pencils and graphics tablets, this software offers a natural drawing experience. The interface is sleek and minimal, featuring a movable rectangle for selecting various writing and drawing tools. With options like brushes and 16 colors in the free version, users can easily create diagrams or graphs on their screen. Additionally, custom keyboard shortcuts can be set up for quick tool access. Ideal for educational purposes, teamwork, streaming, or virtual presentations, Epic Pen is a versatile and powerful tool.