GRAFFLE file format is used by OmniGraffle software application. The application is used to make digital illustrations and drawings.

The file format used to save these drawings is given the extension of GRAFFLE. This file format stores the details of the drawings made on the base layer along with their specific attributes. This file format is generally used as workspace file and it is not used as final image file. Along with the base image this file extension also saves the information related to the tools used and actions taken by the user in making the drawing. Once the final drawing is complete it can be then exported to different image file formats.