Sketch

Sketch is a professional digital design platform for macOS focused on creating interfaces, websites, icons, and screen-based design work. It pioneered many conventions now standard in modern design tools, including reusable symbols, shared styles, responsive layout constraints, and a plugin architecture that extends functionality through community contributions.

The application operates as a vector editor optimized for UI design rather than illustration or print. Its symbol system allows designers to create component libraries that mirror how developers build with reusable components, making handoff more natural. Libraries can be shared across teams to ensure consistency. While Figma has captured significant market share with browser-based collaborative editing, Sketch remains popular among teams that prefer a native Mac application with strong offline capabilities and established workflows built around its extensive plugin ecosystem.