JIGSAW is a Delaunay-based unstructured mesh generator for two- and three-dimensional geometries. It is designed to generate high-quality triangular and tetrahedral meshes for planar, surface and volumetric problems. JIGSAW is based on a recently developed "restricted" Frontal-Delaunay algorithm -- a hybrid technique combining many of the best features of advancing-front and Delaunay-refinement type approaches. JIGSAW is a stand-alone mesh generator written in C++. This toolbox provides a MATLAB / OCTAVE based scripting interface, including file I/O, mesh visualisation and post-processing facilities. In addition to mesh generation, a set of file conversion utilities are also provided, allowing JIGSAW to read and write meshes using a number of popular geometry dialects, including the VTK, OFF, STL and MESH formats. JIGSAW-0.9.2 is currently available for 64-bit Windows and Linux platforms.