The Crystal Programming Language
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Updated
Dec 24, 2025 - Crystal
Crystal is a programming language with friendly syntax, static type checking and modern stdlib. It compiles into efficient, easy-to-distribute native code.
The Crystal Programming Language
The easiest and fastest way to create production-ready Kubernetes clusters on Hetzner Cloud
The pragmatic web framework.
Crystal ORM using ActiveRecord pattern with flexible query DSL
Natural Language Processing (NLP) library for Crystal
It's like ActionCable (100% compatible with JS Client), but you know, for Crystal
Crystal bindings to Webview library
WebAssembly runtime for Crystal
Provide await and async methods to Crystal Lang
⭐️ Web frameworks for Crystal, most starred on Github
🌿💎 The humble beginnings of a 2D game engine in Crystal! [in-progress]
Mutation testing for crystal.
A minimalist Crystal authorization system inspired by https://github.com/varvet/pundit.
gcf.cr provides serverless execution and deployment of crystal language code in Google Cloud Functions
a native library implementing secp256k1 purely for the crystal language.
Crystal bindings for the libvips image processing library.
Created by Ary Borenszweig, Juan Wajnerman
Released June 2011