displayName
Crystal
paradigms
- imperative
- object-oriented
description
Crystal is a statically-typed, compiled, object-oriented language with a
Ruby-inspired syntax. It aims to offer Ruby's developer ergonomics with
C-level performance by compiling to native machine code via LLVM.
Crystal's type system uses structural typing and union types, and its
compiler infers most types so annotations are rarely needed. Fibers and
channels provide lightweight concurrency (CSP-style). The Shards package
manager handles dependencies. Popular use cases include high-performance
CLI tools, web APIs (Kemal, Lucky frameworks), and systems where
migrating from Ruby while gaining performance is desired.