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: 2026-06-16 00:06:54 UTC
- JSON Representation
https://github.com/athena-framework/clock
Decouples applications from the system clock
Last synced: 06 Jul 2025
https://github.com/creadone/ngx
NGINX access log parser and filter by fields or values with output to JSON or plain text
Last synced: 16 May 2026
https://github.com/alexherbo2/rsub.cr
A Crystal library for string replacement from the right-hand side
Last synced: 27 Mar 2025
https://github.com/geocrystal/geohash
Geohash encode/decode library for pure Crystal
Last synced: 01 Mar 2025
https://github.com/nowayhecodes/minidb
crystal crystal-lang crystal-shard nosql nosql-database
Last synced: 24 Jun 2025
https://github.com/athena-framework/mercure
Allows easily pushing updates to web browsers and other HTTP clients using the Mercure protocol
component crystal mercure server-sent-events
Last synced: 07 Oct 2025
https://github.com/mjago/opml
Hierarchical OPML Parser
crystal opml-outline opml-parser xml
Last synced: 07 Oct 2025
https://github.com/eschmidt42/singlecrystal.jl
Building single crystal structures easily
crystal molecular-dynamics notebook
Last synced: 09 May 2026
https://github.com/risgar/crpreview
Preview script for the lf file manager
chafa crystal crystal-lang imagemagick lf terminal-file-manager
Last synced: 29 Oct 2025
https://github.com/potato-industries/crs
portable crystal based reverse shell
crystal crystal-lang reverse-shell
Last synced: 16 Jun 2025
https://github.com/dougeverly/ssh_config_to_iterm_profiles
Generate iTerm2 profiles from an ssh config file.
Last synced: 23 Jun 2026
https://github.com/d1ceward/scaleway-ddns
Simple Scaleway dynamic DNS service using API
Last synced: 19 Jan 2026
https://github.com/faustinoaq/kemal-reuse-port
A kemal app using reuse port
Last synced: 11 Oct 2025
https://github.com/athena-framework/contracts
A set of abstractions extracted out of the Athena components
abstractions component contracts crystal decoupling interfaces interoperability standards
Last synced: 11 Oct 2025
https://github.com/Flipez/battlesnake
Battlesnake 2018 Crystal Implementation
battlesnake battlesnake-2018 crystal crystal-lang
Last synced: 02 May 2025
https://github.com/oblivious-oblivious/skeleton
A very minimal http server api serving as a platform for adding middleware incrementally.
crystal http middleware skeleton
Last synced: 17 Oct 2025
https://github.com/bravo68web/icyicons
Crystalise all your VSCode Icons.
abstract best crystal icon-pack vscode vscode-extension
Last synced: 17 Oct 2025
https://github.com/dcalixto/friendly_id
FriendlyId for Crystal - Create human-readable URLs and slugs
crystal crystal-lang seo seo-optimization slug slug-generator slugify
Last synced: 18 Oct 2025
https://github.com/grepsedawk/bonspiel.studio
https://bonspiel.studio/
crystal crystal-lang lucky lucky-framework
Last synced: 25 Feb 2026
https://github.com/ruivieira/naivebayes
A naive Bayes classifier for Crystal based on muatik's naive-bayes-classifier
classification crystal machine-learning naive-bayes statistics
Last synced: 24 Oct 2025
https://github.com/wout/cardano-kit
At toolkit for Crystal to ease development for the Cardano blockchain.
bech32 cardano cardano-addresses cbor cip08 cip30 crystal crystal-lang ed25519
Last synced: 26 Oct 2025
https://github.com/ellmetha/marten-raven-middleware
Raven.cr integration for the Marten web framework.
crystal framework marten raven sentry sentry-client web
Last synced: 26 Oct 2025
https://github.com/skinnyjames/postal
Crystal bindings for libpostal [Mirror]
Last synced: 27 Oct 2025
https://github.com/geocrystal/ring_area
Calculate the approximate area of the polygon were it projected onto the earth.
Last synced: 28 Jan 2026
https://github.com/mamantoha/upload_io
A streaming upload library written in Crystal that integrates with HTTP::Client. It supports chunked uploads with a built-in progress callback
Last synced: 07 Jul 2025
https://github.com/rjnienaber/amazonite
An unofficial SDK supporting popular AWS APIs.
aws aws-crystal-sdk aws-sdk crystal
Last synced: 16 Apr 2026
https://github.com/cyangle/json_schemer.cr
JSON Schema validator. Supports 2020-12 and OpenAPI 3.1, 3.2
crystal crystal-lang crystal-shard json-schema-validator
Last synced: 05 Mar 2026
https://github.com/maiha/similar_logs.cr
Compact Array(String) with Levenshtein for Crystal
Last synced: 02 Apr 2025
https://github.com/erayjsx/kemal-openapi
OpenAPI 3.0 documentation generator for Kemal. Swagger UI & ReDoc included.
api-documentation crystal crystal-lang kemal kemalcr openapi redoc swagger swagger-ui
Last synced: 04 Mar 2026
https://github.com/michaeltelford/lucky_api_reference_project
A reference project for building JSON API's with Crystal and the Lucky framework
Last synced: 23 Jun 2026
https://github.com/hahwul/acp.cr
An unofficial Crystal implementation of the Agent Client Protocol (ACP)
acp agent-client-protocol crystal
Last synced: 17 Apr 2026
https://github.com/thiagomartins367/mc-code-challenge-backend-developer
Code challenge de desenvolvimento da "Multiverse Travels Booker API", uma API que gerencia o planejamento de viagens no universo de Rick and Morty. Wubbalubbadubdub!
Last synced: 18 Apr 2026
https://github.com/samuallb/w3mimagedisplay
Tiny Crystal library for w3mimagedisplay
crystal crystal-lang image-viewer terminal terminal-based w3m w3mimgdisplay
Last synced: 19 Apr 2026
https://github.com/ragmaanir/kontrakt
Simple design by contract for crystal
assertions crystal design-by-contracts
Last synced: 05 Jun 2026
https://github.com/doughsay/crystal-glfw
Crystal GLFW3 bindings
crystal crystal-opengl glfw3 opengl
Last synced: 20 Apr 2026
https://github.com/codenoid/pardon
Optimized In-Memory with File Based storage for learning purpose
Last synced: 24 Apr 2026
https://github.com/dscottboggs/crystal-darksky
Crystal implementation of the DarkSky weather API
crystal darksky-weather-api shards
Last synced: 06 Jun 2026
https://github.com/risgar/crtangle
Markdown tangler for your config files
cli crystal literate-programming markdown tangle
Last synced: 27 Apr 2026
https://github.com/grantbirki/octokit.cr
Crystal toolkit for the GitHub API (in development)
api crystal github github-api github-api-v3 octokit
Last synced: 28 Apr 2026
https://github.com/felixbuenemann/guard-minitest_cr
Guard::MinitestCr automatically runs your minitest.cr tests
Last synced: 29 Apr 2026
https://github.com/neovintage/crystal-presto
prestodb crystal driver
crystal crystal-lang database database-driver presto prestodb prestodb-crystal-driver
Last synced: 29 Apr 2026
https://github.com/maiha/redis-proto.cr
A handy Redis storage with Protobuf objects for Crystal
Last synced: 29 Apr 2026
https://github.com/fukaoi/crystal-bitcoin
Bitcoin blockchain client sdk for Crystal
bitcoin blockchain crystal crystal-language sdk
Last synced: 30 Apr 2026
https://github.com/nnluukhtn/gitlabira-cr
Gitlab and jira integration
crystal gitlab gitlab-api jira jira-rest-api
Last synced: 01 May 2026
https://github.com/splattael/rouge-lexers-crystal
[DEPRECATED] Rouge's lexer for crystal
Last synced: 01 May 2026
https://github.com/matthewmcgarvey/lucky_pg_extras
Crystal/Lucky PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more.
crystal lucky-framework postgresql
Last synced: 02 May 2026
https://github.com/neo1842/blender-crystal
Crystal rendering and materials created in Blender.
blender blender-nodes blender3d crystal cycles glass shader shader-nodes
Last synced: 24 Jun 2026
https://github.com/jonathan-wanderley/multiverse-travels-booker
Uma API que realiza o planejamento de viagens no universo de Rick and Morty escrita em Crystal (based in Ruby)
crystal crystal-lang jennifer kemal postgresql
Last synced: 03 May 2026
https://github.com/cadmiumcr/readability
Analyze text and determine it's readability using various algorithms
cadmium crystal crystal-lang crystal-language natural-language-processing nlp readability
Last synced: 09 Jun 2026
https://github.com/ragmaanir/besked
Small typed PubSub library for crystal.
Last synced: 09 Jun 2026
https://github.com/sija/jsonl.cr
Crystal shard for handling JSONL (JSON Lines) parsing
Last synced: 05 May 2026
https://github.com/chrisjsewell/ejplugins
parser plugins for the jsonextended package
crystal parser-plugin quantum-espresso
Last synced: 05 May 2026
https://github.com/mdwagner/screen.cr
Crystal port of screen package (Go) to provide a cross-platform way for clearing the screen.
crystal crystal-lang linux macos windows
Last synced: 07 May 2026
https://github.com/shadowevil/crystal-dock
This dock is inspired by Silmeria Dock made for Rainmeter
11 application crystal crystaldock dock laptop mac screen tablet tap touch windows windows-11-dock
Last synced: 07 May 2026
https://github.com/sebyx07/crystal-react-todo-lucky
Todo list built with crystal and react
Last synced: 07 May 2026
https://github.com/codenoid/telegram-bot-boilerplate
Telegram Bot Boilerplate Written in Crystal
api crystal telegram telegram-bot
Last synced: 28 Mar 2025
https://github.com/lupincr/lupin-www
:wolf: 📄 Official Lupin website
crystal crystal-lang crystal-language task-runner
Last synced: 12 Apr 2025
https://github.com/athena-framework/mime
Allows manipulating MIME messages
component crystal mime mime-type
Last synced: 29 Mar 2025
https://github.com/dmarshaltu/logstreamtoo.cr
LogStreamTool is a Crystal application for streaming and monitoring logs from Kubernetes pods. It allows you to easily stream logs from a specific pod to your favorite text editor.
crystal crystal-lang crystal-language k8s kubernetes
Last synced: 29 Apr 2026
https://github.com/crystal-china/hashr
Hashr is a tiny library makes test on JSON response easier, and can also be used as a models object.
Last synced: 15 May 2026
https://github.com/dougeverly/mybot.cr
Just a little bot for Slack that publishes rss feeds.
Last synced: 15 May 2026
https://github.com/theguideforyou/documentation
🔥 Documentação de todas as linguagens possíveis na criação de bots para Discord.
bot crystal development discord documentation for guide java javascript language python ruby the x you
Last synced: 12 Apr 2026
https://github.com/yefremov/algorithms-with-crystal
Common programming algorithms written with Crystal
Last synced: 09 Oct 2025
https://github.com/nilsding/crocket
Crystal wrapper for Rocket
crystal demoscene gnu-rocket rocket
Last synced: 15 May 2026
https://github.com/dayvsonlima/steven
💎 The MVC Crystal Framework for Rubyists
Last synced: 10 Apr 2025
https://github.com/hydecr/hyde-blog
Blog extension for Hyde
blog blog-engine crystal extension hyde hyde-extension
Last synced: 26 Oct 2025
https://github.com/hydecr/hyde_template_default
Default template for new Hyde sites
crystal hyde hyde-theme static-site template
Last synced: 17 Mar 2025
https://github.com/radbas/multibase.cr
Base transcoder (Base62, Base58, BaseN) with multibyte character alphabet support.
base-converter base58 base62 base85 crystal url-shortener
Last synced: 16 Mar 2025
https://github.com/naqvis/opal
CLI for working with container registries
container-registry crystal crystal-lang crystal-language
Last synced: 30 Jul 2025
https://github.com/mamantoha/vk_auth
Crystal library for getting Vk Access Token without manually accessing vk.com website from the browser
Last synced: 19 May 2026
https://github.com/hostari/bento_client
A crystal lang wrapper for the Bentonow API.
Last synced: 20 Jan 2026
https://github.com/fukaoi/crystal-go-bench
Crystal lang vs Go lang, benchmark result
Last synced: 19 May 2026
https://github.com/mmacia/chess
Chess program written in Crystal
chess chess-game crystal crystal-lang
Last synced: 20 Jul 2025
https://github.com/dmdv/opensea-crystal
Simple API which uses crystal, local cache to fetch information about NFT token using Opensea API
crystal crystal-lang crystal-language kemal opensea
Last synced: 14 Jul 2025
https://github.com/grottopress/lena
A low-level API client for Anthropic (Claude AI)
ai anthropic api claude crystal http-client
Last synced: 12 Oct 2025
https://github.com/sam0x17/bedrock
a full-featured, active-record-like ORM for Crystal targetting PostgreSQL and MySQL
crystal crystal-lang crystal-shard database-access database-migrations orm postgresql
Last synced: 30 Apr 2026
https://github.com/kingsleyh/ball
Crystal Ball - super simple crystal version manager for MacOs
Last synced: 17 May 2026
https://github.com/homonoidian/permafrost
Permafrost is a collection of thread-safe, persistent, immutable data structures for Crystal.
bitset crystal hamt hashmap immutable persistent-data-structure
Last synced: 17 Jun 2026
https://github.com/ktanaka101/line-notify-api
Client for LINE notifiy API by Crystal.
Last synced: 08 Jul 2025
https://github.com/mjblack/wcl.cr
WINServer (Wildcat! BBS) Library Bindings for Crystal Language
crystal crystal-lang crystal-language crystal-shard wildcat winserver
Last synced: 28 May 2026
https://github.com/silasb/crystal-hotwire-turbo-stimulus
crystal hotwire hotwire-turbo stimulus stimulusjs
Last synced: 22 Jan 2026
