ASLI (A Simple Lattice Infiller) is a cross-platform command line open-source tool written in C++ that gives users the ability to provide functionally graded lattice infills to any 3D geometry. The lattice infill is constructed out of unit cells, described by implicit functions, whose type, size and feature can be varied locally to obtain the desired local properties. ASLI also has an optional Graphical User Interface (GUI) available, called QASLI.

ASLI is available on GitHub, where you can find the source codes, prebuilt binaries, and development histories.