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https://github.com/sara0871/awesome-crystal

https://github.com/veelenga/awesome-crystal
https://github.com/sara0871/awesome-crystal
List: awesome-crystal
Last synced: 23 days ago
JSON representation
https://github.com/veelenga/awesome-crystal
Host: GitHub
URL: https://github.com/sara0871/awesome-crystal
Owner: sara0871
License: mit
Created: 2018-08-13T09:06:52.000Z (over 6 years ago)
Default Branch: master
Last Pushed: 2018-08-13T09:09:19.000Z (over 6 years ago)
Last Synced: 2024-05-22T22:03:39.552Z (7 months ago)
Language: Crystal
Size: 257 KB
Stars: 1
Watchers: 1
Forks: 0
Open Issues: 1
Metadata Files:
- Readme: README.md
- Contributing: .github/CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project

ultimate-awesome - awesome-crystal - Https://GitHub.com/veelenga/awesome-crystal. (Programming Language Lists / Crystal Lists)
README

        


# Awesome Crystal

[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)

[![Build Status](https://api.travis-ci.org/veelenga/awesome-crystal.svg)](https://travis-ci.org/veelenga/awesome-crystal)

A curated list of awesome Crystal code and resources. Inspired by [awesome](https://github.com/sindresorhus/awesome) and [awesome-awesomeness](https://github.com/bayandin/awesome-awesomeness).

The goal is to have projects mostly stable and useful for the community.

Search [Crystal Shards](https://crystalshards.xyz) or follow announcements [Crystal [ANN]](https://crystal-ann.com) for more.

Contributions are welcome. Please take a quick look at the [contribution guidelines](https://github.com/veelenga/awesome-crystal/blob/master/.github/CONTRIBUTING.md) first.

* [Awesome Crystal](#awesome-crystal)

  * [Algorithms and Data structures](#algorithms-and-data-structures)

  * [Api Builders](#api-builders)

  * [Blockchain](#blockchain)

  * [C Bindings](#c-bindings)

  * [Caching](#caching)

  * [Cli Builders](#cli-builders)

  * [Cli Utils](#cli-utils)

  * [Code Analysis and Metrics](#code-analysis-and-metrics)

  * [Configuration](#configuration)

  * [Converters](#converters)

  * [Data Formats](#data-formats)

  * [Data Generators](#data-generators)

  * [Database Drivers/Clients](#database-driversclients)

  * [Database Tools](#database-tools)

  * [Development Tools](#development-tools)

  * [Email](#email)

  * [Environment Management](#environment-management)

  * [Examples and funny stuff](#examples-and-funny-stuff)

  * [Feature Flipping](#feature-flipping)

  * [Framework Components](#framework-components)

  * [Game Development](#game-development)

  * [GUI library](#gui-library)

  * [HTML/XML parsing](#htmlxml-parsing)

  * [HTTP](#http)

  * [Image Processing](#image-processing)

  * [Implementations/Compilers](#implementationscompilers)

  * [Logging and monitoring](#logging-and-monitoring)

  * [Machine Learning](#machine-learning)

  * [Markdown/Text Processors](#markdowntext-processors)

  * [Misc](#misc)

  * [Network Protocols](#network-protocols)

  * [Networking](#networking)

  * [ORM/ODM Extensions](#ormodm-extensions)

  * [Package Management](#package-management)

  * [Processes and Threads](#processes-and-threads)

  * [Project Generators](#project-generators)

  * [Queues and Messaging](#queues-and-messaging)

  * [Routing](#routing)

  * [Scheduling](#scheduling)

  * [Science and Data analysis](#science-and-data-analysis)

  * [Search](#search)

  * [Serverless Computing](#serverless-computing)

  * [System](#system)

  * [Task management](#task-management)

  * [Template Engine](#template-engine)

  * [Testing](#testing)

  * [Third-party APIs](#third-party-apis)

  * [Web Frameworks](#web-frameworks)

  * [Web Servers](#web-servers)

* [Community](#community)

  * [Unofficial](#unofficial)

* [Resources](#resources)

  * [Official Documentation Translations](#official-documentation-translations)

* [Services and Apps](#services-and-apps)

* [Tools](#tools)

  * [DevOps](#devops)

  * [Editor Plugins](#editor-plugins)

  * [Shell Plugins](#shell-plugins)

## Algorithms and Data structures

 * [aho_corasick](https://github.com/chenkovsky/aho_corasick) - AhoCorasick algorithm

 * [crystal-diff](https://github.com/MakeNowJust/crystal-diff) - A Crystal sequence differencing implementation

 * [crystal-linked-list](https://github.com/abvdasker/crystal-linked-list) - Implementation of Linked List

 * [crystaledge](https://github.com/unn4m3d/crystaledge) - A pure Vector Math library

 * [crystalg](https://github.com/TobiasGSmollett/crystalg) - A Generic Algorithm Library

 * [crystalline](https://github.com/jtomschroeder/crystalline) - A collection of containers and algorithms

 * [delimiter_tree](https://github.com/drujensen/delimiter_tree) - A tree structure that is built using a delimiter

 * [edits.cr](https://github.com/tcrouch/edits.cr) - Collection of edit distance algorithms

 * [hash_ring](https://github.com/TobiasGSmollett/hash_ring) - An Implementation of Consistent Hash Ring

 * [markov](https://github.com/mccallofthewild/markov) - Build Markov Chains and run Markov Processes

 * [miller_rabin](https://github.com/kuende/miller_rabin) - Implements [Miller-Rabin](https://en.wikibooks.org/wiki/Algorithm_Implementation/Mathematics/Primality_Testing) algorithm to check if a number is prime

 * [multiset.cr](https://github.com/tcrouch/multiset.cr) - Implementation of a multiset

 * [murmur3](https://github.com/kuende/murmur3) - Implementation of Murmur3 hash algorithm used by Cassandra

 * [oak](https://github.com/obsidian/oak) - A flexible Radix Tree implementation

 * [radix](https://github.com/luislavena/radix) - Radix Tree implementation

 * [ternary_search_tree](https://github.com/johnjansen/ternary_search_tree) - Ternary Search Tree

 * [text](https://github.com/johnjansen/text) - A collection of text algorithms

## Api Builders

 * [kemal-rest-api](https://github.com/blocknotes/kemal-rest-api) - A library to create RESTful API with Kemal

## Blockchain

 * [SushiChain](https://github.com/SushiChain/SushiChain) - A custom blockchain platform

## C bindings

 * [asound-cr](https://github.com/TamasSzekeres/asound-cr) - Bindings for ALSA/libasound

 * [cairo-cr](https://github.com/TamasSzekeres/cairo-cr) - Bindings for [Cairo](https://cairographics.org/) graphics library

 * [clang.cr](https://github.com/ysbaddaden/clang.cr) - Libclang bindings

 * [crass](https://github.com/vonKingsley/crass) - Bindings for libsass

 * [crt.cr](https://github.com/maiha/crt.cr) - Bindings for libncursesw and crt

 * [crystal-gsl](https://github.com/ruivieira/crystal-gsl) - GNU Scientific Library bindings

 * [curl-crystal](https://github.com/blocknotes/curl-crystal) - Bindings for [libcurl](https://curl.haxx.se/libcurl/)

 * [duktape.cr](https://github.com/jessedoyle/duktape.cr) - Bindings for the [Duktape](https://github.com/svaarala/duktape) javascript engine

 * [gphoto2.cr](https://github.com/Sija/gphoto2.cr) - Bindings for the [libgphoto2](http://www.gphoto.org/) library

 * [icu.cr](https://github.com/olbat/icu.cr) - Bindings for the [ICU](http://site.icu-project.org/) library

 * [libnotify.cr](https://github.com/splattael/libnotify.cr) - Bindings for Libnotify

 * [pcap.cr](https://github.com/maiha/pcap.cr) - Bindings for libpcap

 * [pledge.cr](https://github.com/chris-huxtable/pledge.cr) - Bindings for OpenBSD's `pledge(2)`

 * [posix](https://github.com/ysbaddaden/posix) - POSIX/C bindings

 * [soundfile](https://github.com/mjago/soundfile) - Bindings for [libsndfile](http://www.mega-nerd.com/libsndfile/) library

 * [ssh2.cr](https://github.com/datanoise/ssh2.cr) - Bindings for libssh2 library

 * [termbox-crystal](https://github.com/andrewsuzuki/termbox-crystal) - Bindings and extension library for [termbox](https://github.com/nsf/termbox) (terminal UI library)

 * [x11-cr](https://github.com/TamasSzekeres/x11-cr) - X11 bindings

 * [x_do.cr](https://github.com/woodruffw/x_do.cr) - Bindings for libxdo ([`xdotool`](https://github.com/jordansissel/xdotool))

## Caching

 * [bloom_filter](https://github.com/crystal-community/bloom_filter) - Implementation of Bloom filter

 * [bojack](https://github.com/marceloboeira/bojack) - A non-reliable in-memory key-value store

 * [cache-hash](https://github.com/samueleaton/cache-hash) - A key/value store where entries expire after a specified interval

 * [crystal-memcached](https://github.com/comandeo/crystal-memcached) - Implementation of a memcached client

 * [Nuummite](https://github.com/CodeSteak/Nuummite) - A tiny persistent embedded key-value store

## Cli Builders

 * [admiral](https://github.com/jwaldrip/admiral.cr) - A robust DSL for writing command line interfaces

 * [cli](https://github.com/mosop/cli) - Library for building command-line interface applications

 * [clicr](https://github.com/j8r/clicr) -  A simple declarative command line interface builder

 * [clim](https://github.com/at-grandpa/clim) - Slim command line interface builder

 * [commander](https://github.com/mrrooijen/commander) - Command-line interface builder

 * [completion](https://github.com/f/completion) - Easy command line completion engine

 * [optarg](https://github.com/mosop/optarg) - Yet another library for parsing command-line options and arguments

 * [OptionParser](https://crystal-lang.org/api/OptionParser.html) - command-line options processing (Crystal stdlib)

## Cli Utils

 * [cride](https://github.com/j8r/cride) - A light CLI text editor/IDE

 * [dl](https://github.com/creadone/dl) - Simple utility for download files by URLs from list

 * [noteesh](https://github.com/arandilopez/noteesh) - Notes and Todo list in command line

 * [progress](https://github.com/askn/progress) - [==..] Progress bar

 * [progress_bar.cr](https://github.com/TPei/progress_bar.cr) - A simple and customizable progress bar

 * [spinner](https://github.com/askn/spinner) - Terminal Spinner

 * [terminal_table.cr](https://github.com/benoist/terminal_table.cr) - Simple ASCII table generator

 * [todo](https://github.com/Nephos/todo) - Todo list working in command line

## Code Analysis and Metrics

 * [ameba](https://github.com/veelenga/ameba) - A static code analysis tool

 * [trashman](https://github.com/Groogy/trashman) - A simple memory profiler for Crystal applications

## Configuration

 * [cr-dotenv](https://github.com/gdotdesign/cr-dotenv) - Loads .env file

 * [habitat](https://github.com/luckyframework/habitat) - Type safe configuration for your classes and modules

 * [totem](https://github.com/icyleaf/totem) - Load and parse a configuration in JSON, YAML, dotenv formats

## Converters

 * [base62.cr](https://github.com/Sija/base62.cr) - Base62 encoder/decoder, well suited for url-shortening

 * [human_file_size.cr](https://github.com/johnjansen/human_file_size.cr) - JSON & YAML mapping converter for human file sizes in serialized data

 * [money](https://github.com/crystal-money/money) - Handling money and currency conversion with ease (almost complete port of [RubyMoney](https://github.com/RubyMoney/money))

 * [moola](https://github.com/dorkrawk/moola) - Library for dealing with money and conversion (inspired by [RubyMoney](https://github.com/RubyMoney/money))

 * [ms](https://github.com/SuperPaintman/ms) - Library to easily convert various time formats to milliseconds and milliseconds to human readable format

 * [sass.cr](https://github.com/straight-shoota/sass.cr) - Compile SASS/SCSS to CSS ([libsass](https://github.com/sass/libsass/) binding)

 * [time_format.cr](https://github.com/vladfaust/time_format.cr) - Convert time in human readable format with ease

 * [turkish-number](https://github.com/izniburak/turkish-number) - Turn integers into the Turkish words

 * [wkhtmltopdf-crystal](https://github.com/blocknotes/wkhtmltopdf-crystal) - Bindings / wrapper for libwkhtmltox (HTML to PDF / image converter)

## Data Formats

 * [config.cr](https://github.com/chris-huxtable/config.cr) - Easy to use configuration format parser

 * [crinder](https://github.com/c910335/crinder) - Class based json renderer

 * [crystal-toml](https://github.com/manastech/crystal-toml) - TOML parser

 * [CSV](https://crystal-lang.org/api/CSV.html) - parsing and generating for comma-separated values (Crystal stdlib)

 * [dockerfile.cr](https://github.com/keplersj/dockerfile.cr) - Dockerfile Parsing Library

 * [front_matter.cr](https://github.com/chris-huxtable/front_matter.cr) - Separates a files front matter from its content

 * [Gzip](https://crystal-lang.org/api/Gzip.html) - readers and writers of gzip format (Crystal stdlib)

 * [INI](https://crystal-lang.org/api/INI.html) - INI file parser (Crystal stdlib)

 * [JSON](https://crystal-lang.org/api/JSON.html) - parsing and generating JSON documents (Crystal stdlib)

 * [maxminddb.cr](https://github.com/delef/maxminddb.cr) - parsing MaxMindDB files, including the GeoIP2

 * [XML](https://crystal-lang.org/api/XML.html) - parsing and generating XML documents (Crystal stdlib)

 * [YAML](https://crystal-lang.org/api/YAML.html) - parsing and generating YAML documents (Crystal stdlib)

 * [Zip](https://crystal-lang.org/api/Zip.html) - readers and writers of zip format (Crystal stdlib)

 * [Zlib](https://crystal-lang.org/api/Zlib.html) - readers and writers of zlib format (Crystal stdlib)

 * [zq](https://github.com/colstrom/zq) - Command-line ZPL processor

## Data Generators

 * [faker](https://github.com/askn/faker) - A library for generating fake data

 * [hashids.cr](https://github.com/splattael/hashids.cr) - A library to generate YouTube-like ids from one or many numbers

## Database Drivers/Clients

 * [arangocr](https://github.com/solisoft/arangocr) - ArangoDB client

 * [crystal-db](https://github.com/crystal-lang/crystal-db) - Common db api

 * [crystal-monetdb-libmapi](https://github.com/puppetpies/crystal-monetdb-libmapi) - Bindings for MonetDB

 * [crystal-mysql](https://github.com/crystal-lang/crystal-mysql) - MySQL connector for Crystal

 * [crystal-pg](https://github.com/will/crystal-pg) - A Postgres driver

 * [crystal-redis](https://github.com/stefanwille/crystal-redis) - Full featured Redis client

 * [crystal-sqlite3](https://github.com/crystal-lang/crystal-sqlite3) - SQLite3 bindings

 * [eventql-crystal](https://github.com/measurechina/eventql-crystal) - EventQL driver

 * [leveldb](https://github.com/crystal-community/leveldb) - Crystal bindings for LevelDB

 * [mongo.cr](https://github.com/datanoise/mongo.cr) - Binding for MongoDB C driver

 * [rethinkdb.cr](https://github.com/CubosTecnologia/rethinkdb.cr) - RethinkDB Driver

 * [rocksdb.cr](https://github.com/maiha/rocksdb.cr) - RocksDB client

 * [tarantool-crystal](https://github.com/vladfaust/tarantool-crystal) - Tarantool driver

## Database Tools

 * [crecto-admin](https://github.com/Crecto/crecto-admin) - Admin dashboard for Crecto and your database

 * [micrate](https://github.com/juanedi/micrate) - Database migration tool

 * [migrate](https://github.com/vladfaust/migrate.cr) - A simpler database migration tool with transactions

 * [migro](https://github.com/aisrael/migro) - A database migration tool that allows migrations to be specified in either YAML or raw SQL

## Development Tools

 * [guardian](https://github.com/f/guardian) - File change watcher for Crystal and Non-Crystal libs

 * [kemal-watcher](https://github.com/faustinoaq/kemal-watcher) - Kemal plugin to watch files and live-reload the browser

 * [sentry](https://github.com/samueleaton/sentry) - Watches src files, rebuilds/reruns application on file changes

 * [sentry-run](https://github.com/faustinoaq/sentry-run) - Reload code changes using Sentry.run

 * [Warden](https://github.com/diggersheep/warden) - Watches files, run command and a git command if succeed on file changes

 * [watcher](https://github.com/faustinoaq/watcher) - Watch file changes using File.stat

## Email

 * [carbon](https://github.com/luckyframework/carbon) - Fun, testable, and adapter-based email library

 * [crystal-email](https://github.com/arcage/crystal-email) - Simple e-mail sending library

 * [CrystalEmail](https://github.com/Nephos/CrystalEmail) - A RFC compliant Email validator

 * [devmail](https://github.com/tijn/devmail) - A combined SMTP/POP3-server with volatile mail storage

 * [sendgrid.cr](https://github.com/dlanileonardo/sendgrid.cr) - Simple Sendgrid Client

## Environment Management

 * [asdf-crystal](https://github.com/marciogm/asdf-crystal) - Plugin for asdf version manager

 * [crenv](https://github.com/pine/crenv) - Crystal version manager

 * [rcm.cr](https://github.com/maiha/rcm.cr) - Redis Cluster Manager

## Examples and funny stuff

 * [battlesnake_crystal](https://github.com/nbw/battlesnake_crystal) - Tron snake for [battlesnake](https://www.battlesnake.io/) competition

 * [breakout.cr](https://github.com/petoem/breakout.cr) - Breakout game written using crsfml

 * [chuck-norris-holy-quotes](https://github.com/codenoid/chuck-norris-holy-quotes) - Chuck Norris holy quotes

 * [clamp](https://github.com/johnjansen/clamp) - Clamp any Comparable

 * [crsfml-examples](https://github.com/oprypin/crsfml-examples) - Simple games made with CrSFML

 * [crystal-benchmarks-game](https://github.com/kostya/crystal-benchmarks-game) - The Computer Language Benchmarks Game

 * [crystal-by-example](https://github.com/askn/crystal-by-example) - Crystal By Example

 * [Crystal-Maze](https://github.com/Demonstrandum/Crystal-Maze) - A* Path finding for PNG mazes

 * [crystal-mysql-crud-example](https://github.com/codenoid/crystal-mysql-crud-example) - Crystal MySQL CRUD example

 * [crystal-patterns](https://github.com/crystal-community/crystal-patterns) - Examples of GOF patters

 * [crystalized_ruby](https://github.com/phoffer/crystalized_ruby) - Native Ruby extensions written in Crystal

 * [exercism-crystal](https://github.com/exercism/crystal) - Exercism exercises

 * [jihantoro-cr-mysql](https://github.com/codenoid/jihantoro-cr-mysql) - Crystal MySQL from scratch sample app

 * [jihantoro.sd](https://github.com/codenoid/jihantoro.sd) - Crystal & Kemal version of Serdar Dogruyol blog

 * [kemal-chat](https://github.com/sdogruyol/kemal-chat) - Build realtime applications with Kemal and WebSocket

 * [kemal-heroku-example](https://github.com/cagataycali/kemal-heroku-example) - This repository shows, how you can publish your open source apps which powered kemal framework publish as heroku app in seconds

 * [kemal-mysql-blog](https://github.com/codenoid/kemal-mysql-blog) - Blog written with Crystal, Kemal and MySQL

 * [kemal-react-chat](https://github.com/f/kemal-react-chat) - Build Realtime Web applications with Kemal and React

 * [kemal-vue-chat](https://github.com/ChangJoo-Park/kemal-vue-chat) - Build Realtime Web applications with Kemal and Vue.js

 * [lattice-core-card-game](https://github.com/jasonl99/card_game) - A demo web app for (WebSocket-based) lattice-core

 * [medley](https://github.com/jwoertink/medley) - A mixture of music related methods

 * [os-crystal](https://github.com/lbguilherme/os-crystal) - x86 Kernel implemented in Crystal

 * [realtime-todo-app](https://github.com/Angarsk8/realtime-todo-app) - Realtime Todo application developed with Kemal, Websockets, React, ES2015 and PostgreSQL

 * [rocky](https://github.com/codingphasedotcom/rocky) - React Over Crystal Kemal and Yarn

 * [try.cr](https://github.com/maiha/try.cr) - Try monad

## Feature Flipping

 * [flipper](https://github.com/metaware/flipper) - Feature flipping/flags/rollouts. Supports multiple backends

## Framework Components

 * [cr-melon](https://github.com/gdotdesign/cr-melon) - Class based Http APIs

 * [Crystal-DI](https://github.com/funk-yourself/crystal-di) - Lightweight DI Container

 * [crystal-mime](https://github.com/spalger/crystal-mime) - Mimetypes for Crystal

 * [device_detector](https://github.com/creadone/device_detector) - Shard for detect device by user agent string

 * [Exception Page](https://github.com/crystal-loot/exception_page) - An exceptional exception page for Crystal web libraries and frameworks

 * [graphql-crystal](https://github.com/ziprandom/graphql-crystal) - [Graphql](http://graphql.org) implementation

 * [kave](https://github.com/jwoertink/kave) - Kemal API Version Extension

 * [kemal-auth-token](https://github.com/akwiatkowski/kemal-auth-token) - Kemal middleware to authentication via HTTP header token using JWT

 * [kemal-monetdb](https://github.com/puppetpies/kemal-monetdb) - MonetDB Data connection for Kemal

 * [kemal-session](https://github.com/kemalcr/kemal-session) - Session handler for Kemal

 * [mime-types.cr](https://github.com/jwaldrip/mime-types.cr) - A port of the Ruby MIME-types library

 * [multi-auth](https://github.com/msa7/multi_auth) - Standardized multi-provider OAuth2 authentication (inspired by omniauth)

 * [phoenix.cr](https://github.com/dtcristo/phoenix.cr) - Phoenix Channels client

 * [request_id](https://github.com/SuperPaintman/request-id) - Middleware for generates / pick up a unique request ID for Crystal servers

 * [response_time](https://github.com/SuperPaintman/response-time) - Response time for Crystal servers (pure http server, kemal, etc.)

 * [spec-kemal](https://github.com/kemalcr/spec-kemal) - Easy testing for Kemal

 * [tele-broadcast.cr](https://github.com/vladfaust/tele-broadcast.cr) - Broadcasting module for tele.cr

## Game Development

 * [cray](https://gitlab.com/Zatherz/cray) - Bindings for [raylib](http://www.raylib.com/), an easy-to-use game development library

 * [CrSFML](https://github.com/oprypin/crsfml) - Bindings to [SFML](https://www.sfml-dev.org/) multimedia/game library

 * [crystal-chipmunk](https://github.com/oprypin/crystal-chipmunk) - Bindings for [Chipmunk](http://chipmunk-physics.net/), a fast and lightweight 2D game physics library

 * [glove](https://github.com/ddfreyne/glove) - A library for gaming development

 * [inari](https://github.com/ddfreyne/inari) - A collection of games using Glove as the game engine

 * [mos_game](https://github.com/bararchy/mos_game) - Mini Offline Singleplayer game

## GUI library

 * [hedron](https://github.com/Qwerp-Derp/hedron) - An extendable GUI library, with markup language capabilities

 * [libui.cr](https://github.com/Fusion/libui.cr) - Bindings for [libui](https://github.com/andlabs/libui)

 * [qt5.cr](https://github.com/Papierkorb/qt5.cr) - Qt5 bindings for Crystal, based on Bindgen

## HTML/XML Parsing

 * [crystagiri](https://github.com/madeindjs/Crystagiri) - An Html Reader / parser like [Nokogiri](https://github.com/sparklemotion/nokogiri) Ruby gem

 * [gumbo-crystal](https://github.com/blocknotes/gumbo-crystal) - Bindings for [Gumbo](https://github.com/google/gumbo-parser), an HTML5 parsing library made by Google

 * [hq.cr](https://github.com/maiha/hq.cr) - Simple wrapper for crystal-xml

 * [modest](https://github.com/kostya/modest) - CSS selectors for HTML5 Parser myhtml

 * [myhtml](https://github.com/kostya/myhtml) - Fast HTML5 Parser

## HTTP

 * [cossack](https://github.com/crystal-community/cossack) - Simple flexible HTTP client

 * [crest](https://github.com/mamantoha/crest) - Simple HTTP and REST client, inspired by the Ruby's RestClient gem

 * [crul](https://github.com/porras/crul) - Command line HTTP client

 * [cryload](https://github.com/sdogruyol/cryload) - HTTP benchmarking tool

 * [halite](https://github.com/icyleaf/halite) - Crystal HTTP Requests with a chainable REST API, built-in sessions and loggers

 * [helmet](https://github.com/EvanHahn/crystal-helmet) - Set security-related HTTP headers

 * [http-multiserver.cr](https://github.com/vladfaust/http-multiserver.cr) - Mounting multiple servers via routes (a.k.a. URL mapping)

 * [http-protection](https://github.com/rogeriozambon/http-protection) - Protection against typical web attacks

 * [http2](https://github.com/ysbaddaden/http2) - HTTP/2 Protocol Implementation

 * [HTTP::Client](https://crystal-lang.org/api/HTTP/Client.html) - HTTP client (Crystal stdlib)

 * [HTTP::Server](https://crystal-lang.org/api/HTTP/Server.html) - HTTP server (Crystal stdlib)

 * [HTTP::WebSocket](https://crystal-lang.org/api/HTTP/WebSocket.html) - HTTP WebSocket client (Crystal stdlib)

 * [http_distributor](https://github.com/Nephos/http_distributor) - HTTP server which allows sneaky http requests

 * [http_parser.cr](https://github.com/kostya/http_parser.cr) - Wrapper for [Http Parser lib](https://github.com/nodejs/http-parser)

 * [keyer_cr](https://github.com/danielpclark/keyer_cr) - Adds HTTP GET/POST parameter parsing as a Hash-like object

 * [ngrok.cr](https://github.com/watzon/ngrok.cr) - Ngrok wrapper

 * [resp-crystal](https://github.com/soveran/resp-crystal) - Lightweight RESP client

## Image processing

 * [magickwand-crystal](https://github.com/blocknotes/magickwand-crystal) - Bindings for [MagickWand](https://www.imagemagick.org/script/magick-wand.php), the C interface for ImageMagick processing libraries

 * [stumpy_gif](https://github.com/stumpycr/stumpy_gif) - Write (animated) GIF images

 * [stumpy_png](https://github.com/stumpycr/stumpy_png) - Read and write PNG images

## Implementations/Compilers

 * [charly](https://github.com/charly-lang) - Charly Programming Language

 * [cltk](https://github.com/ziprandom/cltk) - A crystal port of the Ruby Language Toolkit

 * [cppize](https://github.com/unn4m3d/cppize) - Crystal-to-C++ transpiler

 * [crisp](https://github.com/rhysd/Crisp) - Lisp dialect implemented with Crystal

 * [crow](https://github.com/geppetto-apps/crow) - Transpile/compile Crystal to [Flow](https://flow.org/)

 * [LinCAS-lang](https://github.com/LinCAS-lang) - A programming language for scientific computation

 * [mint-lang](https://github.com/mint-lang/mint) - A refreshing programming language for the front-end web

 * [myst-lang](https://github.com/myst-lang/) - A practical, dynamic language designed to be written and understood as easily and efficiently as possible

 * [NuummiteOS](https://github.com/TheKernelCorp/NuummiteOS) - An OS written in Crystal as a Proof of Concept

 * [runic-lang](https://github.com/runic-lang) - In-design toy language

 * [zir](https://github.com/tbrand/zir) - Realizes to write macros in any scripts into any languages

## Logging and monitoring

 * [crometheus](https://gitlab.com/ezrast/crometheus) - A [Prometheus](https://prometheus.io/) client library

 * [crystal-logreader](https://github.com/arcage/crystal-logreader) - Tailing log file

 * [fluent-logger-crystal](https://github.com/TobiasGSmollett/fluent-logger-crystal) - A structured logger for [Fluentd](https://www.fluentd.org/)

 * [instana](https://github.com/instana/crystal-sensor) - A metrics and distributed trace collector for [Instana](https://www.instana.com/)

 * [katip](https://github.com/guvencenanguvenal/katip) - JSONbase logger

 * [Logger](https://crystal-lang.org/api/Logger.html) - logging utility (Crystal stdlib)

 * [statsd.cr](https://github.com/miketheman/statsd.cr) - [Statsd](https://github.com/etsy/statsd) client library

 * [syslog.cr](https://github.com/comandeo/syslog.cr) - Implementation of Syslog client

## Machine Learning

 * [ai4cr](https://github.com/drhuffman12/ai4cr) - Artificial Intelligence (based on https://github.com/SergioFierens/ai4r)

 * [crystal-fann](https://github.com/NeuraLegion/crystal-fann) - FANN (Fast Artifical Neural Network) binding

 * [crystal-learn](https://github.com/pbrusco/crystal-learn) - Sklearn-like machine-learning library

 * [grey_matter](https://github.com/dorkrawk/grey_matter) - A basic artificial neural network library

 * [shainet](https://github.com/NeuraLegion/shainet) - SHAInet (Neural Network in pure crystal)

 * [tensorflow.cr](https://github.com/fazibear/tensorflow.cr) - Bindings for [TensorFlow](https://github.com/tensorflow/tensorflow)

## Markdown/Text Processors

 * [html-pipeline](https://github.com/huacnlee/html-pipeline) - HTML processing filters and utilities

 * [markd](https://github.com/icyleaf/markd) - Yet another markdown parser built for speed, Compliant to CommonMark specification

 * [remarkdown](https://github.com/huacnlee/remarkdown) - GFM for Crystal

## Misc

 * [aasm.cr](https://github.com/veelenga/aasm.cr) - Easy to use finite state machine for Crystal classes

 * [accord](https://github.com/neovintage/accord) - Sharable validations for Crystal objects

 * [any_hash.cr](https://github.com/Sija/any_hash.cr) - Recursive Hash with better JSON::Any included

 * [atomic_write.cr](https://github.com/chris-huxtable/atomic_write.cr) - Library for writing or apppending files atomically

 * [burocracia.cr](https://github.com/vnbrs/burocracia.cr) - burocracia.cr the dependecyless shard to validate, generate and format Brazilian burocracias such as CPF, CNPJ and CEP

 * [circuit_breaker](https://github.com/TPei/circuit_breaker) - Implementation of the circuit breaker pattern

 * [crystal-binary_parser](https://github.com/DanSnow/crystal-binary_parser) - Binary parser

 * [crz](https://github.com/dhruvrajvanshi/crz) - Functional programming library

 * [denetmen](https://github.com/izniburak/denetmen) - Useful micro validator / check library

 * [emoji.cr](https://github.com/veelenga/emoji.cr) - Emoji library

 * [hoop](https://github.com/0x73/hoop) - Building native OSX apps

 * [html_builder](https://github.com/crystal-lang/html_builder) - DSL for creating HTML

 * [i18n.cr](https://github.com/vladfaust/i18n.cr) - Internationalization shard

 * [immutable](https://github.com/lucaong/immutable) - Implementation of thread-safe, persistent, immutable collections

 * [inflector.cr](https://github.com/phoffer/inflector.cr) - Singularize, pluralize, camelize, etc (port from ActiveSupport)

 * [lirith](https://github.com/lirith-engine/lirith) - Graphics engine

 * [m3u8](https://github.com/akiicat/m3u8) - Generate and parse m3u8 playlists for HTTP Live Streaming

 * [manual-generator](https://github.com/blocknotes/manual-generator) - Tool to generate PDF manuals from documentation sites

 * [raytracer](https://github.com/l3kn/raytracer) - CPU Raytracer with examples

 * [syscall.cr](https://github.com/kubo39/syscall.cr) - Raw syscall interface

 * [tren](https://github.com/sdogruyol/tren) - Give your SQL some love

 * [ulid](https://github.com/SuperPaintman/ulid) - Universally Unique Lexicographically Sortable Identifier (ULID)

 * [wikicr](https://github.com/Nephos/wikicr) - Wiki using git to manage revisions

## Network Protocols

 * [bson.cr](https://github.com/jeromegn/bson.cr) - Native BSON implementation

 * [Crirc](https://github.com/Meoowww/Crirc) - IRC protocol implementation (Client, Server, Bots)

 * [crystal-json-socket](https://github.com/foi/crystal-json-socket) - JSON-socket client & server implementation. Inspired by and compatible with [node-json-socket](https://github.com/sebastianseilund/node-json-socket/) and [ruby-json-socket](https://github.com/foi/ruby-json-socket)

 * [fast_irc.cr](https://github.com/RX14/fast_irc.cr) - Fast IRC parser/generator

 * [jwt](https://github.com/crystal-community/jwt) - Implementation of JWT (JSON Web Token)

 * [msgpack-crystal](https://github.com/crystal-community/msgpack-crystal) - MessagePack library

 * [OAuth](https://crystal-lang.org/api/OAuth.html) - OAuth consumer (Crystal stdlib)

 * [OAuth2](https://crystal-lang.org/api/OAuth2.html) - OAuth2 client (Crystal stdlib)

 * [OpenSSL](https://crystal-lang.org/api/OpenSSL.html) - bindings to libssl (Crystal stdlib)

 * [transfer_more](https://github.com/Nephos/transfer_more) - Clone of transfer.sh to uploads files

## Networking

 * [ipaddress.cr](https://github.com/Sija/ipaddress.cr) - Library to handle IPv4 and IPv6 addresses

## ORM/ODM Extensions

 * [active_record.cr](https://github.com/waterlink/active_record.cr) - Active Record pattern implementation

 * [clear](https://github.com/anykeyh/clear) - ORM specialized to PostgreSQL only but with advanced features

 * [core](https://github.com/vladfaust/core.cr) - Pure, transparent and efficient ORM

 * [crecto](https://github.com/Crecto/crecto) - Database wrapper, based on Ecto

 * [granite](https://github.com/amberframework/granite) - ORM for Postgres, Mysql, Sqlite

 * [jennifer.cr](https://github.com/imdrasil/jennifer.cr) - Active Record pattern implementation with flexible query chainable builder and migration system

 * [ohm-crystal](https://github.com/soveran/ohm-crystal) - Object-hash mapping library for Redis

 * [record](https://github.com/luckyframework/record) - Type safe querying, saving and updating

 * [redis-tsv.cr](https://github.com/maiha/redis-tsv.cr) - Import and export data from Redis in TSV format

 * [stal-crystal](https://github.com/soveran/stal-crystal) - Set algebra solver for Redis

 * [topaz](https://github.com/topaz-crystal/topaz) - A simple and useful db wrapper

## Package Management

 * [CRelease](https://github.com/elorest/crelease) - Version and git tag manager that makes shard releases easy

 * [shards](https://github.com/crystal-lang/shards) - Dependency manager for the Crystal

## Processes and Threads

 * [await_async](https://github.com/anykeyh/await_async) - Add keywords await & async in Crystal Lang

 * [crystal-futures](https://github.com/dhruvrajvanshi/crystal-futures) - Future type implementation

 * [neph](https://github.com/tbrand/neph) - A modern command line job processor that can execute jobs concurrently

 * [promise](https://github.com/jwaldrip/promise.cr) - A Promise Implementation

## Project Generators

 * [bindgencr](https://github.com/TechMagister/bindgencr) - Generator of bindings based on castxml output

 * [crystal_lib](https://github.com/crystal-lang/crystal_lib) - Automatic binding generator for native libraries

 * [fez](https://github.com/jwoertink/fez) - A Kemal application generator

 * [kgen](https://github.com/kemalyst/kemalyst-generator) - Kemalyst command line tool for console, init, generate (scaffolding), and watch.

 * [libgen](https://github.com/olbat/libgen) - Automatic bindings generator configured using JSON/YAML files

 * [wasp](https://github.com/icyleaf/wasp) - Static Site Generator

## Queues and Messaging

 * [amqp.cr](https://github.com/datanoise/amqp.cr) - AMQP 0.9.1 client with RabbitMQ extensions

 * [dispatch](https://github.com/bmulvihill/dispatch) - In memory asynchronous job processing

 * [mosquito](https://github.com/robacarp/mosquito/) - Redis backed periodic and ad hoc job processing

 * [sidekiq.cr](https://github.com/mperham/sidekiq.cr) - Simple, efficient job processing

## Routing

 * [crouter](https://github.com/jreinert/crouter) - A standalone router

 * [orion](https://github.com/obsidian/orion) - A minimal, rails-esque routing library

 * [router.cr](https://github.com/tbrand/router.cr) - Minimum but powerful http router for HTTP::Server

 * [toro](https://github.com/soveran/toro) - Tree Oriented Routing

## Scheduling

 * [cron_scheduler](https://github.com/kostya/cron_scheduler) - Job scheduler with crontab patterns

 * [crystime](https://gitlab.com/crystallabs/crystime) - Advanced time, calendar, schedule, and remind library

 * [quartz](https://github.com/andrewhamon/quartz) - Crystal clear timers

 * [schedule.cr](https://github.com/hugoabonizio/schedule.cr) - Run periodic tasks

## Science and Data analysis

 * [linalg](https://github.com/konovod/linalg) - Linear algebra library inspired by MATLAB and SciPy.linalg

 * [predict.cr](https://github.com/RX14/predict.cr) - Satellite prediction library using the sgp4 model

 * [scorystal](https://github.com/asafschers/scorystal) - Scoring API for PMML - supports RF and GBM

 * [stats](https://github.com/Nephos/stats) - An expressive implementation of statistical distributions

## Search

 * [hermes](https://github.com/imdrasil/hermes.cr) - Data Mapper pattern implementation for ElastiSearch

 * [query-builder](https://github.com/izniburak/query-builder) - Sql Query Builder library

 * [query.cr](https://github.com/waterlink/query.cr) - Query abstraction

 * [soegen](https://github.com/Ragmaanir/soegen) - Elasticsearch client for Crystal similar to the stretcher gem for ruby

## Serverless Computing

 * [gcf.cr](https://github.com/sam0x17/gcf.cr) - Managed execution of Crystal in Google Cloud Functions

## System

 * [baked_file_system](https://github.com/schovi/baked_file_system) - Virtual file system implementation

 * [hardware](https://github.com/crystal-community/hardware) - Get CPU, Memory and Network informations of the running OS and its processes

 * [rcpu](https://github.com/ddfreyne/rcpu) - A virtual machine emulator and assembler

## Task management

 * [cake](https://github.com/axvm/cake) - Production-ready Make-like utility tool

 * [sam](https://github.com/imdrasil/sam.cr) - Another one Rake-like task manager with namespacing and arguments system

## Template Engine

 * [crikey](https://github.com/domgetter/crikey) - Templating engine inspired by [Hiccup](https://github.com/weavejester/hiccup)

 * [crinja](https://github.com/straight-shoota/crinja) - An implementation of the [Jinja2 template engine](http://jinja.pocoo.org/)

 * [crustache](https://github.com/MakeNowJust/crustache) - [{{Mustache}}](https://mustache.github.io) for Crystal

 * [ECR (Embedded Crystal)](https://crystal-lang.org/api/ECR.html) - compile time template language which uses plain crystal expressions (Crystal stdlib)

 * [Kilt](https://github.com/jeromegn/kilt) - Abstraction layer for template engines

 * [Slang](https://github.com/jeromegn/slang) - Lightweight, terse, templating language inspired by Ruby's Slim

 * [teeplate](https://github.com/mosop/teeplate) - A library for rendering multiple template files

 * [temel](https://github.com/f/temel) - Extensible HTML::Builder alternative for Crystal, supports custom tag definitions

## Testing

 * [coverage](https://github.com/anykeyh/crystal-coverage) – Generate cover report for your crystal code

 * [crotest](https://github.com/emancu/crotest) - A tiny and simple test framework

 * [LuckyFlow](https://github.com/luckyframework/lucky_flow) - Automated browser tests similar to Capybara

 * [mass-spec](https://github.com/c910335/mass-spec) - Web API testing library

 * [microtest](https://github.com/Ragmaanir/microtest) - Small opinionated testing library focusing on power asserts

 * [minitest.cr](https://github.com/ysbaddaden/minitest.cr) - Library for unit tests and assertions

 * [mocks.cr](https://github.com/waterlink/mocks.cr) - Mocking library for Crystal

 * [Spec](https://crystal-lang.org/api/Spec.html) - spec framework (Crystal stdlib)

 * [spec2-mocks](https://github.com/waterlink/spec2-mocks.cr) - An adapter of mocks.cr for spec2.cr

 * [spec2.cr](https://github.com/waterlink/spec2.cr) - Enhanced testing library

 * [timecop.cr](https://github.com/TobiasGSmollett/timecop.cr) - Library for mocking with `Time.now`. Inspired by [timecop ruby gem](https://github.com/travisjeffery/timecop)

 * [webmock.cr](https://github.com/manastech/webmock.cr) - Library for stubbing `HTTP::Client` requests

## Third-party APIs

 * [aws-signer.cr](https://github.com/beanieboi/aws-signer.cr) - This library signs your HTTP requests using AWS v4

 * [awscr-s3](https://github.com/taylorfinnell/awscr-s3) - AWS S3 interface

 * [awscr-signer](https://github.com/taylorfinnell/awscr-signer) - Sign HTTP::Request objects and generate presigned post forms

 * [bugsnag.cr](https://github.com/gewo/bugsnag.cr) - Bugsnag exception notifier and sidekiq middleware

 * [crystal-darksky](https://github.com/sb89/crystal-darksky) - Wrapper for the [Dark Sky](https://darksky.net) API

 * [crystal-github](https://github.com/felipeelias/crystal-github) - Wrapper for the [Github](https://github.com/) API

 * [crystal-monzo](https://github.com/barisbalic/crystal-monzo) - A client for the [Monzo API](https://monzo.com/docs/)

 * [crystal-swapi](https://github.com/sb89/crystal-swapi) - Star Wars API (SWAPI) wrapper

 * [crystal_slack](https://github.com/manastech/crystal_slack) - A tool that parses Slack slash commands or send incoming web hooks

 * [discordcr](https://github.com/meew0/discordcr) - A minimalist Discord API library

 * [dotacr](https://github.com/azah/dotacr) - Wrapper for Valve's DotA API

 * [GDAX](https://github.com/mccallofthewild/gdax) - GDAX REST and WebSocket API Wrapper with request signing

 * [gitlab.cr](https://github.com/icyleaf/gitlab.cr) - GitLab API wrapper

 * [google_maps_api](https://github.com/fridgerator/google_maps_api) - Google Maps API

 * [hncr](https://github.com/Gangwolf/hncr) - A Hacker News API wrapper

 * [mixpanel-crystal](https://github.com/petoem/mixpanel-crystal) - A library for sending events to Mixpanel

 * [nexmo-crystal](https://github.com/timcraft/nexmo-crystal) - [Nexmo REST API](https://developer.nexmo.com/) client

 * [ocean_kit](https://github.com/osfx/ocean_kit) - [Digital Ocean v2 API](https://developers.digitalocean.com/documentation/v2/) client

 * [open_exchange_rates](https://github.com/osfx/open_exchange_rates) - A library to access [Open Exchange Rates](https://openexchangerates.org/) API

 * [pinboard.cr](https://github.com/oz/pinboard.cr) - [Pinboard](https://pinboard.in) API

 * [raven.cr](https://github.com/sija/raven.cr) - Raven is a client for [Sentry](https://github.com/getsentry/sentry)

 * [slack.cr](https://github.com/DougEverly/slack.cr) - A Slack [Real Time Messaging API](https://api.slack.com/rtm) WebSocket client library

 * [spotify.cr](https://github.com/marceloboeira/spotify.cr) - A library to access the Spotify API

 * [tele.cr](https://github.com/vladfaust/tele.cr) - A *convenient* wrapper for the Telegram Bot API

 * [telegram_bot](https://github.com/hangyas/telegram_bot) - A wrapper for the Telegram Bot API

 * [tourmaline](https://github.com/watzon/tourmaline) - Yet another Telegram Bot API wrapper

 * [twitter-crystal](https://github.com/sferik/twitter-crystal) - A library to access the Twitter API

## Web Frameworks

 * [amber](https://github.com/amberframework/amber) - Open source efficient and cohesive web application framework

 * [kemal](https://github.com/kemalcr/kemal) - Lightning Fast, Super Simple web framework. Inspired by Sinatra

 * [lattice-core](https://github.com/jasonl99/lattice-core) - A WebSocket-first object-oriented framework (based on Kemal)

 * [lucky](https://github.com/luckyframework/lucky) - Catch bugs early, forget about most performance issues, and spend more time on code instead of debugging and writing tests

 * [prism](https://github.com/vladfaust/prism) - Light, modular web framework

 * [raze](https://github.com/samueleaton/raze) - Modular, light web framework

 * [spider-gazelle](https://github.com/spider-gazelle/spider-gazelle) - A Rails esque web framework with a focus on speed and extensibility

## Web Servers

 * [fast-http-server](https://github.com/sdogruyol/fast-http-server) - Super fast, zero configuration command line HTTP Server

 * [prax.cr](https://github.com/ysbaddaden/prax.cr) - Rack proxy server for development

 * [salt](https://github.com/icyleaf/salt) - A Human Friendly Interface for HTTP server

 * [serve](https://github.com/SuperPaintman/serve) - Command line static HTTP server

# Community

 * [Crystal weekly newsletters](http://crystalweekly.com/)

 * [Gitter](https://gitter.im/crystal-lang/crystal)

 * [Google Group](https://groups.google.com/forum/?fromgroups#!forum/crystal-lang)

 * [IRC](http://irc.lc/freenode/crystal-lang) - #crystal-lang on Freenode

 * [Metaruby](https://metaruby.com/c/crystal-forum) - Crystal Forum on Metaruby

 * [Reddit](https://www.reddit.com/r/crystal_programming/)

 * [Stackoverflow](https://stackoverflow.com/tags/crystal-lang/info)

## Unofficial

 * [Russian-speaking Telegram Group](https://t.me/crystal_ru) - Добро пожаловать, товарищ!

# Resources

 * [Crystal for Rubyists](http://www.crystalforrubyists.com/) - free book to bootstrap your Crystal journey

 * [crystal-lang.org](https://crystal-lang.org) - Official language site

 * [devdocs.io](https://devdocs.io/crystal/) - API Documentation Browser with Crystal support

## Official Documentation Translations

 * [br.crystal-lang.org](http://br.crystal-lang.org/) - Brazilian

 * [ja.crystal-lang.org](http://ja.crystal-lang.org/) - Japanese

 * [kr.crystal-lang.org](https://kr.crystal-lang.org/) - Korean

 * [ru.crystal-lang.org](http://ru.crystal-lang.org/) - Russian

 * [tw.crystal-lang.org](http://tw.crystal-lang.org/) - Chinese Traditional

# Services and Apps

 * [carc.in](https://carc.in/) - A web service that runs your code and displays the result

 * [Crank](https://github.com/arktisklada/crank) - A Procfile-based application manager (like Foreman)

 * [cry](https://github.com/elorest/cry) - Ability to execute crystal code in a fashion similar to Ruby's pry edit

 * [Crystal [ANN]](https://crystal-ann.com) - Announce new project, blog post, version update or any other Crystal work

 * [crystalshards.herokuapp.com](https://crystalshards.herokuapp.com/), [crystalshards.xyz](http://crystalshards.xyz/) - Web services that list all available Crystal shards

 * [Crystular](http://www.crystular.org) - Regular expression tester

 * [DeBot](https://github.com/jhass/DeBot) - IRC bot written in Crystal

 * [Ficha](https://github.com/codenoid/ficha) - A super secret chat app, for any body who needs privacy

 * [Firegrid](https://github.com/foliea/firegrid) - Click anywhere with only a few key strokes

 * [icr](https://github.com/crystal-community/icr) - Interactive console for Crystal (like IRB for Ruby)

 * [JSON to Crystal](https://watzon.me/projects/json-to-crystal) - Paste in a JSON object and get Crystal mappings in response

 * [mpngin](https://github.com/thewalkingtoast/mpngin) - A URL shortener with simple stats

 * [nes](https://github.com/romeroadrian/nes.cr) - A NES emulator

 * [shards.rocks](https://shards.rocks/) - Service that manages dependencies inspired by [Gemnasium](https://gemnasium.com/) and [David](https://david-dm.org/)

 * [torrent](https://github.com/Papierkorb/torrent) - A BitTorrent client

# Tools

 * [crystal-base](https://github.com/ruivieira/crystal-base) - CentOS base docker image for Crystal development

 * [crystal-ctags](https://github.com/SuperPaintman/crystal-ctags) - Ctags generator for Crystal

 * [crystal-dash-docset](https://github.com/Sija/crystal-dash-docset) - [Dash](https://kapeli.com/dash) docset generator

 * [helptransl8](https://github.com/papilip/helptransl8) - Tool for document translators

## DevOps

 * [ansible-crystal](https://github.com/CorbanR/ansible-crystal) - Ansible playbook for installing crystal

 * [capistrano-kemal](https://github.com/bitfex/capistrano-kemal) - Capistrano Plugin for Kemal

 * [crystal-cookbook](https://github.com/vjdhama/crystal-cookbook) - Chef cookbook for installing crystal

## Editor Plugins

 * Atom

   * [crystal-tools](https://atom.io/packages/crystal-tools) - Enables built in tools in Crystal compiler

   * [language-crystal-actual](https://atom.io/packages/language-crystal-actual) - Crystal language support in Atom

 * Emacs

   * [emacs-crystal-mode](https://github.com/dotmilk/emacs-crystal-mode) - Crystal language support for Emacs

   * [play-crystal.el](https://github.com/veelenga/play-crystal.el) - [play.crystal-lang.org](https://play.crystal-lang.org/#/cr) integration in Emacs

 * [scry](https://github.com/crystal-lang-tools/scry) - Code analysis server for Crystal implementing the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/)

 * Spacemacs

   * [crystal-spacemacs-layer](https://github.com/juanedi/crystal-spacemacs-layer) - Spacemacs contribution layer for Crystal

 * Sublime

   * [sublime-crystal](https://github.com/crystal-lang-tools/sublime-crystal) - Crystal syntax highlighting for sublime Text

 * TextMate

   * [Crystal.tmbundle](https://github.com/crystal-lang-tools/Crystal.tmbundle) - Crystal syntax highlighting, compile, format command, snippets

 * Vim

   * [carcin.vim](https://github.com/MakeNowJust/carcin.vim) - Vim plugin to provide utility functions for carc.in

   * [vim-crystal](https://github.com/rhysd/vim-crystal) - Vim filetype support for Crystal

   * [vim-slang](https://github.com/elorest/vim-slang) - Vim filetype support for Slang Templating Engine

 * Visual Studio Code

   * [vscode-crystal](https://github.com/g3ortega/vscode-crystal) - Crystal language support in VSCode

   * [vscode-crystal-ide](https://github.com/crystal-lang-tools/crystal-ide) - Crystal IDE powered by [Language Server Protocol](https://code.visualstudio.com/blogs/2016/06/27/common-language-protocol)

   * [vscode-crystal-lang](https://github.com/crystal-lang-tools/vscode-crystal-lang) - Formatter, linter and syntax highlighting for `cr` and `ecr` files

## Shell plugins

 * [crystal-zsh](https://github.com/veelenga/crystal-zsh) - .oh-my-zsh plugin