The Crystal Programming Language

🍃 A refreshing programming language for the front-end web.

Fast, Effective, Simple Web Framework

💎 A collection of awesome Crystal libraries, tools, frameworks and software

A full-featured Crystal web framework that catches bugs for you, runs incredibly fast, and helps you write code that lasts.

A Crystal web framework that makes building applications fast, simple, and enjoyable. Get started with quick prototyping, less bugs, and blazing fast performance.

Crystal bindings to SFML multimedia/game library

📖 Examples of GOF patterns written in Crystal

Minimum High Performance Middleware for Crystal Web Server.

Crystal-lang bindings for libui

Generic template interface for Crystal

Tree oriented routing

Evaluate JavaScript from Crystal!

A robust DSL for writing command line interfaces written in Crystal.

A Crystal router

An extendable UI library in Crystal, with markup capabilities.

Server-rendering for client-side interactions

A small Sinatra clone for Crystal

Crystal bindings to Dear ImGui

Design Patterns in Crystal programming language

Crystal framework for making games

An OS kernel written in Crystal.

VCR for Crystal!

Selenium Webdriver client for the Crystal programming language

Crystal library to create REST API with Kemal

Automated browser tests for web applications. Similar to Ruby's Capybara.

Lisp dialect implemented with Crystal

OpenGL bindings for the Crystal language

VM emulator and assembler written in Crystal

A library of helpers for working with html for apps Crystal