What is Crystal?
Crystal is a programming language that resembles Ruby but compiles to native code and tries to be much more efficient, at the cost of disallowing certain dynamic aspects of Ruby.
Crystal is a tool in the Languages category of a tech stack.
Crystal is an open source tool with 17K GitHub stars and 1.3K GitHub forks. Here’s a link to Crystal's open source repository on GitHub
Who uses Crystal?
20 companies reportedly use Crystal in their tech stacks, including WeTransfer, s21g, and DevDungeon.com.
220 developers on StackShare have stated that they use Crystal.
Strapi, Airbrake, Starship (Shell Prompt), Azk, and Kemal are some of the popular tools that integrate with Crystal. Here's a list of all 7 tools that integrate with Crystal.
Pros of Crystal
Compiles to efficient native code
Ruby inspired syntax
Performance oriented - C-like speeds
Gem-like packages, called Shards
Can call C code using Crystal bindings
Typed Ruby <3
Program compiled into a single binary
Has builtin LLVM support library
Feels like duck types, safe like static types
Statically linked binaries that are simple to deploy
Fun to write
Simple, minimal syntax
Compile time statically safe macros
Statically Safe Monkey Patching
Meta-Programming (via Macros)
- Ruby-inspired syntax.
- Statically type-checked but without having to specify the type of variables or method arguments.
- Be able to call C code by writing bindings to it in Crystal.
- Have compile-time evaluation and generation of code, to avoid boilerplate code.
- Compile to efficient native code.
Crystal Alternatives & Comparisons
What are some alternatives to Crystal?
See all alternatives
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