SimuLattice is a MATLAB-based software supporting the simulation-based design of lattice structures. It offers three simulation models tailored for different design stages, helping designers quickly and accurately determine the mechanical properties of additively manufactured lattice structures. The software includes:, - Numerical homogenization models for initial design., - Joint stiffening element models for design optimization., - Hybrid element models for design validation., - An as-built material property model considering additive manufacturing influences.