Sketch is a digital product design platform focused on interface design, prototyping, and design collaboration.
Its native Mac application provides tools for creating interfaces, reusable components, design systems, and interactive prototypes.
Sketch also includes a browser-based workspace where developers, managers, and other collaborators can view, inspect, and comment on design documents without installing the Mac application.
An iOS application is available for previewing designs and prototypes on mobile devices. Sketch is particularly suited to teams working on websites, applications, and digital products.