Lunacy
Icons8’s Lunacy is a free graphic design software with built-in vector graphics, photos, interface designs, and other resources to help you create sketches with ease on your Windows, macOS, and Linux systems.
Lunacy offers numerous design tools, including built-in vector graphics, photos, user interface kits, and more, allowing users to complete designs with little effort. The software will likewise open and edit sketch documents, making it suitable for designers and other professionals who are looking for an easy-to-use and budget-friendly design solution.