Crystal
Crystal is a programming language with friendly syntax, static type checking and modern stdlib. It compiles into efficient, easy-to-distribute native code.
- GitHub: https://github.com/topics/crystal
- Wikipedia: https://en.wikipedia.org/wiki/Crystal_(programming_language)
- Repo: https://github.com/crystal-lang
- Created by: Ary Borenszweig, Juan Wajnerman
- Released: June 2011
- Aliases: crystal-lang, crystallang, crystal-language,
- Last updated: 2026-03-22 00:06:49 UTC
- JSON Representation
https://github.com/askn/progress
[==..] Progress bar for Crystal Programming Language
Last synced: 20 Aug 2025
https://github.com/straight-shoota/crinja
Implementation of Jinja2 template language in Crystal
crystal jinja jinja2 template-engine
Last synced: 04 Oct 2025
https://github.com/cable-cr/cable
It's like ActionCable (100% compatible with JS Client), but you know, for Crystal
actioncable crystal crystal-language hacktoberfest lucky-framework realtime websockets
Last synced: 05 Apr 2025
https://github.com/jtomschroeder/crystalline
A collection of containers & algorithms for the Crystal programming language
Last synced: 14 Apr 2025
https://github.com/jhass/crystal-gobject
gobject-introspection for Crystal
crystal gdk glib glue gobject-introspection gtk libnotify shard usable
Last synced: 14 Apr 2025
https://github.com/j8r/dockerfiles
Repository for my dockerfiles
crystal docker dockerfile openrc systemd
Last synced: 04 Apr 2025
https://github.com/obsidian/orion
A Crystal router
crystal crystal-language router
Last synced: 14 Apr 2025
https://github.com/sija/raven.cr
Raven is a Crystal client for Sentry
crash-reporting crystal error-monitoring error-reporting sentry
Last synced: 26 Oct 2025
https://github.com/at-grandpa/clim
Slim command line interface builder for Crystal.
clim command-line-interface-builder crystal
Last synced: 15 Apr 2025
https://github.com/myst-lang/myst
A structured, dynamic, general-purpose language.
crystal dynamic language myst-lang object-oriented programming-language
Last synced: 14 Apr 2025
https://github.com/dfabric/dppm
An easy way to install and manage server applications
application crystal installer openrc package-manager self-hosted systemd
Last synced: 15 Apr 2025
https://github.com/DFabric/dppm
An easy way to install and manage server applications
application crystal installer openrc package-manager self-hosted systemd
Last synced: 28 Mar 2025
https://github.com/icyleaf/markd
Yet another markdown parser, Compliant to CommonMark specification, written in Crystal.
commonmark crystal gfm markdown markdown-flavors
Last synced: 04 Apr 2025
https://github.com/marceloboeira/bojack
🐴 The unreliable key-value store
bojack cache crystal data-storage data-store database distributed nosql redis ruby storage store
Last synced: 27 Mar 2025
https://github.com/stumpycr/stumpy_png
Read/Write PNG images in pure Crystal
Last synced: 14 Apr 2025
https://github.com/crystal-community/cossack
Simple and flexible HTTP client for Crystal with middleware and test support.
Last synced: 17 Mar 2025
https://github.com/icy-arctic-fox/spectator
Feature-rich testing framework for Crystal inspired by RSpec.
bdd crystal hacktoberfest rspec spec tdd testing
Last synced: 05 Oct 2025
https://github.com/crystal-linux/amethyst
Crystal Linux is now hosted at https://gitlab.com/crystal-linux
arch-linux archlinux crystal hacktoberfest package package-management package-manager
Last synced: 08 May 2025
https://github.com/ysbaddaden/earl
Service Objects for Crystal (Agents, Artists, Supervisors, Pools, ...)
actor agent crystal pool supervisor
Last synced: 26 Apr 2025
https://github.com/xiaohang007/slices
SLICES: An Invertible, Invariant, and String-based Crystal Representation [2023, Nature Communications] MatterGPT, SLICES-PLUS
crystal crystallography deep-learning machine-learning materials-informatics materials-science representation smiles
Last synced: 05 Apr 2025
https://github.com/shardlab/discordcr
Minimalist Discord library for Crystal
Last synced: 26 Mar 2025
https://github.com/xiaohang007/SLICES
SLICES: An Invertible, Invariant, and String-based Crystal Representation [2023, Nature Communications] MatterGPT, SLICES-PLUS
crystal crystallography deep-learning machine-learning materials-informatics materials-science representation smiles
Last synced: 11 Apr 2025
https://github.com/codingphasedotcom/rocky
React Over Crystal Kemal and Yarn
crystal framework full-stack kemal react rocky yarn
Last synced: 15 Mar 2025
https://github.com/naqvis/webview
Crystal bindings to Webview library
crystal crystal-bindings crystal-lang crystal-language shard webview webview-library
Last synced: 15 Apr 2025
https://github.com/icyleaf/hpr
镜像任意 git 仓库到 gitlab 的同步工具，具有定时更新的功能
crystal git-mirror git-replication gitlab-mirror repository-mirror
Last synced: 09 Apr 2025
https://github.com/naqvis/wasmer-crystal
WebAssembly runtime for Crystal
crystal crystal-lang crystal-language wasi wasm wasmer webassembly
Last synced: 08 Jul 2025
https://github.com/ysbaddaden/http2
HTTP/2 Protocol Implementation for the Crystal Language
Last synced: 26 Apr 2025
https://github.com/sol-vin/raylib-cr
LibRaylib Bindings for Crystal.
binding crystal framework gamedev
Last synced: 05 Apr 2025
https://github.com/deepmodeling/crystalformer
Space Group Informed Transformer for Crystalline Materials Generation
autoregressive crystal generative-model reinforcement-finetuning transformer
Last synced: 01 May 2025
https://github.com/celestinecr/celestine
An SVG library written in Crystal. Can be used to make cool animations, as well as other kinds of uses.
celestine crystal crystal-lang svg svg-animation
Last synced: 10 Oct 2025
https://github.com/onyxframework/sql
A delightful SQL ORM ☺️
crystal crystal-db onyxframework orm query-builder sql sql-orm
Last synced: 24 Aug 2025
https://github.com/kindmetrics/kindmetrics
Kind metrics analytics for your website
analytics crystal google-analytics lucky-framework privacy
Last synced: 14 Aug 2025
https://github.com/luckyframework/lucky_cli
A Crystal command-line tool for generating new Lucky Web Applications.
command-line crystal hacktoberfest lucky-framework
Last synced: 07 May 2025
https://github.com/hedron-crystal/hedron
An extendable UI library in Crystal, with markup capabilities.
Last synced: 02 May 2025
https://github.com/luckyframework/habitat
Easily configure settings for Crystal projects
configuration crystal hacktoberfest
Last synced: 07 May 2025
https://github.com/crystal-lang-tools/sublime-crystal
Crystal syntax highlighting for Sublime Text
Last synced: 11 Jul 2025
https://github.com/olbat/libgen
Automatic C-bindings generator for the Crystal language
binding-generator code-generation crystal
Last synced: 27 Jul 2025
https://github.com/neuralegion/crystal-fann
FANN (Fast Artifical Neural Network) binding in Crystal
crystal fann machine-learning neural-network
Last synced: 07 May 2025
https://github.com/NeuraLegion/crystal-fann
FANN (Fast Artifical Neural Network) binding in Crystal
crystal fann machine-learning neural-network
Last synced: 27 Mar 2025
https://github.com/onyxframework/onyx
Powerful framework for modern applications 💪
crystal framework onyxframework
Last synced: 10 Apr 2025
https://github.com/azutoolkit/duo
A Pure HTTP 2 Server for the Crystal Language with full support for H2Load and H2Spec test coverage
Last synced: 15 May 2025
https://github.com/jetrockets/shrine.cr
File Attachment toolkit for Crystal applications. Heavily inspired by Shrine for Ruby.
crystal fileuploader orm-adapters shrine
Last synced: 28 Jul 2025
https://github.com/hangyas/telegram_bot
(deprecated) see https://github.com/protoncr/tourmaline instead
bot crystal telegram telegram-bot
Last synced: 12 Oct 2025
https://github.com/hugoabonizio/schedule.cr
:clock3: Run periodic tasks in Crystal
cronjob crystal hacktoberfest schedule tasks
Last synced: 18 Jun 2025
https://github.com/grkek/iu
UI framework based on the Fusion/libui.cr library, with elements from watzon/cru.
crystal gui libui reusable-components ui user-interface
Last synced: 19 Apr 2025
https://github.com/mattrberry/CryBoy
A Game Boy (Color) emulator written in Crystal
crystal emulator gameboy gameboy-color gameboy-color-emulator gameboy-emulator sdl2
Last synced: 10 May 2025
https://github.com/amberframework/liquid.cr
Liquid template engine for Crystal
crystal liquid template-engine
Last synced: 23 Jun 2025
https://github.com/elbywan/cryomongo
A MongoDB driver written in pure Crystal. ❄️
crystal mongo mongodb mongodb-driver
Last synced: 09 Apr 2025
https://github.com/rogeriozambon/http-protection
This library protects against typical web attacks. It was inspired in rack-protection Ruby gem.
crystal http middlewares security
Last synced: 27 Mar 2025
https://github.com/isaced/crystal-web-framework-stars
⭐️ Web frameworks for Crystal, most starred on Github
crystal crystal-language ranking stars
Last synced: 09 Apr 2025
https://github.com/crystal-lang/install-crystal
GitHub Action: Install Crystal programming language
Last synced: 04 Apr 2025
https://github.com/icyleaf/totem
Crystal configuration with spirit. Load and parse configuration in JSON, YAML, dotenv formats.
Last synced: 16 Apr 2025
https://github.com/phenopolis/pluto
A fast and convenient image processing library
crystal crystal-lang image-processing jpeg lossless lossy png ppm webp
Last synced: 06 Oct 2025
https://github.com/blocknotes/magickwand-crystal
Crystal C bindings for MagickWand library
crystal imagemagick magickwand
Last synced: 27 Mar 2025
https://github.com/hanneskaeufler/crytic
Mutation testing for crystal.
crystal crystal-language hacktoberfest mutation-testing testing
Last synced: 11 Apr 2025
https://github.com/philnash/crotp
CrOTP - One Time Passwords for Crystal
2fa crystal hotp otp shard totp two-factor-authentication
Last synced: 30 Apr 2025
https://github.com/crystal-loot/exception_page
An exceptional exception page for Crystal web libraries and frameworks
Last synced: 09 Apr 2025
https://github.com/anykeyh/crystal-coverage
Coverage tool for Crystal lang
coverage crystal crystal-coverage spec
Last synced: 30 Apr 2025
https://github.com/crystal-community/kiwi
A unified Crystal interface for key-value stores.
Last synced: 27 Jul 2025
https://github.com/papierkorb/cannon
Lightning fast data serialization and RPC for Crystal
crystal data-serialization rpc
Last synced: 30 Apr 2025
https://github.com/danilafe/pegasus
A parser generator for C and Crystal.
c compilers crystal parser parser-generator
Last synced: 30 Apr 2025
https://github.com/ilanusse/praetorian
A minimalist Crystal authorization system inspired by https://github.com/varvet/pundit.
authorisation authorization crystal crystal-lang crystal-language praetorian shard
Last synced: 06 May 2025
https://github.com/stephendolan/lucky_jumpstart
Get up and running quickly with Lucky!
Last synced: 30 Apr 2025
https://github.com/topaz-crystal/topaz
A simple and useful db wrapper for Crystal-lang
activerecord crystal database db db-wrapper model orm orm-library topaz
Last synced: 14 Apr 2025
https://github.com/mamantoha/zipstream
A command line tool that allows you to easily share files and directories over the network
cli crystal gzip hacktoberfest http-server snapcraft tar zip
Last synced: 04 Sep 2025
https://github.com/ysbaddaden/artanis
Sinatra-like DSL for the Crystal language (abusing macros)
Last synced: 24 Aug 2025
https://github.com/lbguilherme/crystal-js
Bindings to use Crystal compiled to WebAssembly in a JavaScript environment, such as Node.js, Deno or the Web.
crystal deno frontend javascript nodejs wasm web webassembly
Last synced: 27 Jan 2026
https://github.com/jgaskins/redis
Pure-Crystal Redis client, supporting clustering, RedisJSON, RediSearch, RedisGraph, and RedisTimeSeries
crystal crystal-lang redis redis-client redis-cluster redis-graph redis-json redis-timeseries redisearch redisjson redistimeseries
Last synced: 09 Apr 2025
https://github.com/defense-cr/defense
🔮 A Crystal HTTP handler for throttling, blocking and tracking malicious requests.
allow2ban block crystal fail2ban handler rack-attack throttle throttling
Last synced: 28 Dec 2025
https://github.com/ysbaddaden/selenium-webdriver-crystal
Selenium Webdriver client for the Crystal programming language
Last synced: 15 Mar 2025
https://github.com/elbywan/zap
Another [insert blazing fast synonyms] JavaScript package manager
crystal javascript npm package-manager pnpm yarn
Last synced: 09 Apr 2025
https://github.com/grottopress/shield
Comprehensive security for Lucky framework
authentication crystal lucky-framework oauth2 security
Last synced: 08 May 2025
https://github.com/blocknotes/kemal-rest-api
Crystal library to create REST API with Kemal
Last synced: 15 Mar 2025
https://github.com/KieranP/Game-Of-Life-Implementations
Conway's Game of Life implementation in various languages
conway-game crystal crystal-lang csharp dart dartlang game game-of-life groovy java javascript kotlin nim nim-lang php python ruby scala swift typescript
Last synced: 10 May 2025
https://github.com/askn/spinner
Terminal Spinner for Crystal Programming Language
Last synced: 13 Jul 2025
https://github.com/christophemarois/arguing-robots
🤖 Watch and hear macOS robots argue live in your terminal 🤖
cli crystal macos robots text-to-speech
Last synced: 13 Apr 2025
https://github.com/waterlink/mocks.cr
General purpose mocking library for Crystal.
Last synced: 22 Mar 2025
