The Crystal Programming Language

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.

x86-64 os made in crystal

Ultra quick message queue and streaming server

Simple, efficient job processing for Crystal

Crystal By Example

A static code analysis tool for Crystal

A Language Server Protocol implementation for Crystal. 🔮

Interactive console for Crystal programming language

a postgres driver for crystal

Crystal ORM using ActiveRecord pattern with flexible query DSL

An intelligent AMQP proxy, with connection and channel pooling/reusing

Full featured Redis client for Crystal

Scry is a code analysis server for https://crystal-lang.org

Common db api for crystal

📖 Examples of GOF patterns written in Crystal

Advanced ORM between postgreSQL and Crystal

💎HTTP Requests Client with a chainable REST API, built-in sessions and middlewares.

Evaluate JavaScript from Crystal!

Raven is a Crystal client for Sentry

Slim command line interface builder for Crystal.

Mock HTTP::Client

Feature-rich testing framework for Crystal inspired by RSpec.

Generic (connection) pools for Crystal

Get CPU, Memory and Network informations of the running OS and its processes

This library protects against typical web attacks. It was inspired in rack-protection Ruby gem.

An AMQP 0-9-1 client for Crystal