Lunacy is a free, cross-platform design software available for Windows, macOS, and Linux, offering a comprehensive suite of tools for UI/UX design. It features real-time collaboration, auto layouts, and the ability to import from Figma, making it a versatile choice for designers. With built-in graphics, including icons, illustrations, and photos, Lunacy streamlines the design process. Its AI-powered tools enhance productivity by automating routine tasks like image upscaling and background removal. Designed for both online and offline use, Lunacy prioritizes user privacy and offers a community-driven development approach.