Lunacy

Lunacy is a free desktop graphics editor that runs natively on Windows, macOS and Linux. It opens and edits Sketch files and provides a full set of vector‑design tools, including auto‑layout for responsive UI, linked design editing of web pages, and a range of built‑in assets such as icons, illustrations, photos and UI kits. The application also offers AI‑powered utilities like image upscaling, background removal, placeholder text generation, and avatar creation to streamline routine tasks.

The software supports real‑time collaboration, allowing multiple users to work on the same file simultaneously, with components and variables that stay in sync across devices. It includes features for prototyping, such as clickable links and automatic layer ordering, as well as auto‑shape color adjustments that adapt to surrounding elements. An offline mode lets users continue work without an internet connection.

Lunacy targets power users and design teams who need a professional‑grade vector tool without subscription fees. Its distinctive aspects are the native, lightweight performance on low‑spec hardware, the extensive built‑in asset library, and the integration of AI helpers that automate repetitive design steps.