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.

Mango is a self-hosted manga server and web reader

Simple, efficient job processing for Crystal

Crystal By Example

The microframework for writing powerful web applications.

A background task runner for crystal applications supporting periodic (CRON) and manually queued jobs

It's like ActionCable (100% compatible with JS Client), but you know, for Crystal

Provide await and async methods to Crystal Lang

Pure-Crystal implementation of gRPC

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

An AMQP 0-9-1 client for Crystal

This has been completely rewritten in 2019. The old implementation has moved to the alpha branch.

NATS client in pure Crystal with JetStream support

etcd client for crystal lang

AWS Lambda's Custom Runtime to execute Crystal's code

HTTP-based microservice, written on Crystal, to compare programming languages in real tasks

A concurrent, terminal-based tool written in Crystal. Live coding at https://www.twitch.tv/lbarasti