The application features several design tools, along with a drag-and-drop WYSIWYG interface and a notes function that annotate and create specification documentation for prototypes and mockups.

While OmniGraffle can produce graphics and visuals, it is often used as a tool to create content maps, screen flows, and wireframes.

"[4] OmniGraffle design tools include canvases, templates, stencils, vector drawings, and grid guides.

All users can export their graffles to JPEG, BMP, EPS, GIF, HTML Images, SVG, Template, Stencil, PNG, OO3, TIFF, and PDF.

However, Omnigraffle doesn't provide CAD integration like Visio, since it lacks some features such as DWG or DXF (Autodesk file formats), import/export functions, among others.