Rust, a modern and safe programming language, is rapidly gaining popularity in the software development world. One of the most important features of Rust is its focus on modularity and reusability. This is achieved through a concept called “crates.” In this article, we will take a detailed look at what crates are in Rust, how they are used, and why they are important. What is a Crate? Simply put, a crate is the fundamental building block of a Rust project.