PeriDyn is an implementation of peridynamics, an integral reformulation of continuum equations of motion. PeriDyn uses DifferentialEquations_jl for solvers, i.e., integrate equations of motion and provides helper functions to stage simulations. It provides an easy implementation of custom material and contact models, allowing the simulation of complex systems. It also writes particle trajectory (similar to MD trajectory in LAMMPS), which can be visualized using software like Ovito.