Skip to main content
Crystal logo
Language

Crystal

Verified Sep 2026

A language for humans and computers

Ruby's syntax with C's speed: compiled, statically typed, duck-typed feel.

Ruby's syntax with static types and compiled performance, using LLVM. Fibers for concurrency, shards for packages, and type inference so good it feels dynamic. Small community and ecosystem, but for ex-Rubyists who need speed without learning Rust, it hits a sweet spot. 1.0 shipped in 2021

Who it's for

Developers who want Ruby's joy with compiled, type-safe speed.

Keep exploring

1 in catalog

Crystal works with