Meteorites are pieces of rock that formed in space and landed on Earth. Some of them, the chondrites, formed very early in the solar system and recorded the processes that took place at the time. While we cannot observe these processes today, we can use computer simulations to reproduce them as closely as possible and study the earliest phases of our solar system. In this presentation, we will first give an introduction to natural meteorites and how they can be used to probe the early stages of solar system evolution. In a second part, we will give two examples that show how computer simulations can help us study how to synthetically produce some of the features observed in meteorites. The first is a project involving 2D hydrodynamical simulations to study the formation of chondrules, small crystallized silicate droplets found in primitive meteorite. In the second project, we use 3D smoothed-particle hydrodynamical (SPH) simulations to replicate isotopic signatures measured in planetary material and meteorites.