crystal
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Description:
Fast and statically typed, compiled language with Ruby-like syntax
Type: Formula  |  Latest Version: 1.18.2@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  @CrystalLanguage  |  formulae.brew.sh
Category: Developer tools
Tags: crystal compiler programming-language ruby static-typing performance
Install: brew install crystal
About:
Crystal is a compiled programming language that combines the performance of C with the syntax elegance of Ruby. It features a powerful type inference system that catches errors at compile-time while maintaining developer productivity. The language includes a garbage collector and built-in concurrency support via lightweight fibers.
Key Features:
  • Ruby-like, readable syntax
  • Statically typed with powerful type inference
  • Compiles to native machine code for high performance
  • Built-in concurrency with lightweight fibers
  • Comprehensive standard library
Use Cases:
  • Building high-performance command-line tools and utilities
  • Developing web services and APIs with the Amber framework
  • Creating system-level applications requiring C-like performance
  • Writing scripts that need to be fast and type-safe
Alternatives:
  • Ruby – Interpreted and dynamically typed; Crystal offers compiled performance with similar syntax
  • Go – Also compiled with concurrency focus; Crystal has more expressive, Ruby-like syntax
  • Rust – More explicit memory management; Crystal has garbage collection and gentler learning curve
Version History
Detected Version Rev Change Commit
Oct 17, 2025 5:50pm 0 VERSION_BUMP b3e11ce5
Oct 14, 2025 7:08pm 0 VERSION_BUMP 652351b2
Sep 11, 2025 7:03pm 1 VERSION_BUMP 749e411e
Jan 10, 2025 1:53pm 0 VERSION_BUMP 495e0e34
Jan 8, 2025 5:57pm 0 VERSION_BUMP e21c4273
Jan 8, 2025 12:06pm 0 VERSION_BUMP c13d3dd8
Oct 9, 2024 5:03pm 1 VERSION_BUMP b7e4ab59
Sep 18, 2024 6:55pm 0 VERSION_BUMP a41fd4e0
Sep 18, 2024 3:28pm 0 VERSION_BUMP dc996b5f