SketchBook Pro, also referred to as SketchBook, is a raster graphics software application intended for expressive drawing and concept sketching. It was first developed by Alias Systems Corporation, before being acquired by Autodesk. Originally developed as commercial software, it evolved into a subscription model before eventually being made freeware for personal use.

SketchBook features a radial/pie-menu user interface and has painting and drawing tools such as pencils, markers, and brushes. It uses pressure-sensitive features of digital drawing pads, tablet computers, and smartphones to create effects similar to traditional materials. A screenshot tool is also included for annotations, allowing one to show content during meetings, and to add notes for review. The program can also create flipbooks or animations, and it supports layers with the ability to import from and export to Adobe Photoshop (.psd) format. Other features include rulers, brush customization, and canvas rotation.