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/vnbrs/burocracia.cr
👔 Zero-dependency Crystal shard to validate, generate and format Brazilian burocracias (CPF, CNPJ, CEP)
brasil brazil cep cnpj cpf crystal crystal-language
Last synced: 09 Apr 2025
https://github.com/faustinoaq/kemal-watcher
Kemal plugin to watch files and live-reload the browser
Last synced: 12 May 2025
https://github.com/geocrystal/geo
Geospatial primitives and algorithms for Crystal
algorithms convex-hull crystal geo geojson geolocation geospatial-primitives hacktoberfest haversine polygons ring-area
Last synced: 03 Oct 2025
https://github.com/amauryt/cr-cmark-gfm
Crystal C bindings for cmark-gfm to work with Commonmark and Github Flavored Markdown
commonmark crystal gfm markdown
Last synced: 19 Oct 2025
https://github.com/Ragmaanir/soegen
Elasticsearch client library for crystal, similar to rubys stretcher gem
Last synced: 16 Mar 2025
https://github.com/icyleaf/wasp
A Static Site Generator written in Crystal.
Last synced: 15 Mar 2025
https://github.com/naqvis/playwright-cr
Crystal version of the Playwright testing and automation library.
crystal crystal-lang crystal-shard playwright
Last synced: 24 Oct 2025
https://github.com/jlcrochet/vim-crystal
Improved Vim syntax highlighting and indentation for Crystal
crystal crystal-lang indentation syntax-highlighting vim vim-crystal vim-ftplugin vim-indent vim-plugin vim-syntax
Last synced: 30 Apr 2025
https://github.com/aablinov/psutil.cr
Psutils.cr is a Crystal port of https://github.com/shirou/gopsutil
crystal psutil system-information
Last synced: 12 Apr 2025
https://github.com/wout/mollie.cr
Mollie Payments API client for Crystal http://www.mollie.com
apple-pay bancontact crystal giropay ideal ing-home-pay kbc mollie pay payment paypal paysafecard sepa sofort
Last synced: 07 May 2025
https://github.com/rogerwelin/crystal-consul
Crystal client for Consul (http://www.consul.io/)
consul consul-api crystal crystal-lang
Last synced: 12 May 2025
https://github.com/cocol-project/cocol
Rapid blockchain prototyping
blockchain crystal crystal-language distributed-ledger distributed-systems experimental miner proof-of-stake proof-of-work test-bed toolkit
Last synced: 12 May 2025
https://github.com/Sija/crystal-dash-docset
Dash docset generator for Crystal
crystal dash dash-docset docset documentation
Last synced: 14 Nov 2025
https://github.com/mjago/sonicri
Audio Player
audio audio-player audio-streaming crystal podcast
Last synced: 04 Jul 2025
https://github.com/crystal-loot/nox
Procfile-based process manager written in Crystal
Last synced: 12 May 2025
https://github.com/nickbclifford/gkeybind
A Linux utility for binding custom behavior to Logitech keyboards.
crystal gkeys hotkeys keyboard-shortcuts linux logitech logitech-keyboards macros
Last synced: 29 Oct 2025
https://github.com/maxfierke/mstrap
Machine bootstrapping tool with a focus on sensible defaults, conventions, and avoidance of vendoring
bootstrapping crystal developer-tools development-environment hcl2 linux macos provisioning
Last synced: 23 Apr 2025
https://github.com/krthr/uuix
A tiny (<1KB) and fast UUID (v4) generator for Crystal
crystal crystal-language mit tiny uuid uuid4
Last synced: 24 Feb 2026
https://github.com/demonstrandum/crystal_maze
A* Path finding for PNG mazes, from Ruby now in Crystal. Using StumpyPNG
a-star algorithm crystal labyrinth maze maze-solver png solver stumpy
Last synced: 07 Apr 2025
https://github.com/crystal-community/timecop.cr
A testing library that allows "time travel," "freezing time," and "time acceleration". Inspired by the ruby-timecop library.
Last synced: 09 Jul 2025
https://github.com/obskyr/hamtaro-in-pieces
A disassembly of the wonderful Game Boy Color game Hamtaro: Ham-Hams Unite!
assembly crystal disassembly game-boy game-boy-color hamtaro retro rgbds
Last synced: 15 Jul 2025
https://github.com/Angarsk8/realtime-todo-app
Realtime Todo application developed with Kemal, React, ES2015 and PostgreSQL
crystal docker ecmascript2015 kemal postgresql react realtime
Last synced: 02 May 2025
https://github.com/Demonstrandum/crystal_maze
A* Path finding for PNG mazes, from Ruby now in Crystal. Using StumpyPNG
a-star algorithm crystal labyrinth maze maze-solver png solver stumpy
Last synced: 02 May 2025
https://github.com/icyleaf/salt
**Unmaintained** A Human Friendly Interface for HTTP server written in Crystal.
crystal webserver webserver-interface
Last synced: 02 May 2025
https://github.com/crystal-lang-tools/crystal.tmbundle
TextMate 2 Bundle Crystal
Last synced: 11 Jul 2025
https://github.com/geocrystal/haversine
Crystal implementation of the Haversine formula to calculate distances between two points given their latitudes and longitudes
Last synced: 25 Feb 2026
https://github.com/ysbaddaden/crystal-cmark
Crystal wrapper for libcmark, the reference CommonMark C library
Last synced: 12 Oct 2025
https://github.com/sija/crystal-dash-docset
Dash docset generator for Crystal
crystal dash dash-docset docset documentation
Last synced: 23 Aug 2025
https://github.com/crystal-lang-tools/Crystal.tmbundle
TextMate 2 Bundle Crystal
Last synced: 14 Nov 2025
https://github.com/erdnaxeli/clip
Deserialize CLI parameters to an object, with errors and help management.
Last synced: 11 Jul 2025
https://github.com/amauryt/crystal-duckdb
Crystal language bindings for DuckDB
Last synced: 06 May 2025
https://github.com/dansnow/crystal-binary_parser
Binary parser for Crystal
binary-parser crystal crystal-binary-parser
Last synced: 18 Mar 2025
https://github.com/vladfaust/tarantool.cr
The Tarantool driver (a.k.a. connector) 🕷
crystal shard tarantool tarantool-connector tarantool-driver
Last synced: 20 Apr 2025
https://github.com/DanSnow/crystal-binary_parser
Binary parser for Crystal
binary-parser crystal crystal-binary-parser
Last synced: 27 Mar 2025
https://github.com/RX14/predict.cr
Satellite prediction library for crystal using the sgp4 model
crystal satellite satellite-prediction sgp4
Last synced: 27 Mar 2025
https://github.com/mkdika/lff-cr
Simple and straightforward large files finder utility
crystal finder large-files linux osx unix-shell utility
Last synced: 12 May 2025
https://github.com/naqvis/snappy
Snappy compression format reader/writer for Crystal
compression-format crystal crystal-lang crystal-language snappy
Last synced: 12 May 2025
https://github.com/icy-arctic-fox/opengl.cr
Dynamically generated OpenGL bindings for Crystal.
Last synced: 28 Oct 2025
https://github.com/rx14/predict.cr
Satellite prediction library for crystal using the sgp4 model
crystal satellite satellite-prediction sgp4
Last synced: 21 Aug 2025
https://github.com/pawandubey/pegasus
PEG based parser generator library in Crystal
Last synced: 12 Apr 2025
https://github.com/azutoolkit/cql
CQL Toolkit is a comprehensive library designed to simplify and enhance the management and execution of SQL queries in Crystal. This toolkit provides utilities for building, validating, and executing SQL statements with ease, ensuring better performance and code maintainability.
crystal crystalang db mapper query-builder query-dsl sql
Last synced: 18 Jan 2026
https://github.com/jwoertink/crono
2D Video Game framework
crystal game-2d game-development sdl2
Last synced: 12 May 2025
https://github.com/lanjoni/hackacrow
Run tests for any programming language quickly!
crystal crystal-lang hacktoberfest tests
Last synced: 12 May 2025
https://github.com/bt-opensource/crafka
Kafka library for Crystal. Uses librdkafka.
crystal crystal-lang kafka librdkafka
Last synced: 01 Aug 2025
https://github.com/wyhaines/defined.cr
This shard provides facilities for checking whether a constant exists at compile time, and for a variety of different conditional compilation options. Code can be conditionally compiled based on the existence of a constant, version number constraints, or whether an environment variable is set truthy or not.
Last synced: 12 May 2025
https://github.com/maxfierke/hcl.cr
A general-purpose HCL2 (Hashicorp Configuration Language) parser written in Crystal.
crystal crystal-lang hcl hcl2 parser
Last synced: 11 Oct 2025
https://github.com/delef/geoip2.cr
MaxMind GeoIP2 Reader for Crystal
crystal geoip-location geoip2 maxmind-db maxmind-geoip2-api
Last synced: 16 Mar 2026
https://github.com/alexherbo2/chronic
A natural language date-time parser for the command-line
chronic crystal date-time parser
Last synced: 08 Sep 2025
https://github.com/devnote-dev/docr
A CLI tool for searching Crystal documentation
cli command-line crystal crystal-lang docs documentation-tool terminal terminal-ui
Last synced: 12 Jun 2025
https://github.com/DougEverly/slack.cr
Slack Real Time Messaging API in Crystal
Last synced: 02 May 2025
https://github.com/mjblack/win32cr
Crystal library for Win32 API
crystal crystal-lang crystal-language crystal-shard win32 win32api windows
Last synced: 20 Oct 2025
https://github.com/BT-OpenSource/crafka
Kafka library for Crystal. Uses librdkafka.
crystal crystal-lang kafka librdkafka
Last synced: 14 May 2025
https://github.com/vladfaust/mini_redis
A light-weight low-level Redis client for Crystal ♨️
Last synced: 20 Apr 2025
https://github.com/athena-framework/console
Allows for the creation of CLI based commands
Last synced: 21 Apr 2025
https://github.com/ennerperez/crystaldecisions
Crystal Reports NuGets Packages for .NET Framework
Last synced: 11 Jul 2025
https://github.com/dougeverly/slack.cr
Slack Real Time Messaging API in Crystal
Last synced: 18 Oct 2025
https://github.com/lbarasti/concur
A collection of concurrency utilities for Crystal, leveraging Fibers and channels.
concurrency concurrency-patterns crystal event-driven
Last synced: 07 May 2025
https://github.com/tcrouch/edits.cr
Edit distance algorithms inc. Jaro, Damerau-Levenshtein, and Optimal Alignment
crystal damerau-levenshtein edit-distance jaro jaro-winkler levenshtein similarity-measures text
Last synced: 12 Apr 2025
https://github.com/crimson-crystal/crimson
A Crystal Version Manager
cli crimson crystal crystal-lang version-control version-manager versioning
Last synced: 16 Aug 2025
https://github.com/instana/crystal-sensor
🔮 Crystal Distributed Tracing & Metrics Sensor for Instana
crystal distributed-tracing instrumentation metrics metrics-gathering monitoring opentracing performance performance-monitoring
Last synced: 11 May 2025
https://github.com/naqvis/cr-xmpp
XMPP/Jabber Library for Crystal
crystal crystal-lang crystal-language crystal-xmpp jabber scram scram-sha-1 scram-sha-256 scram-sha-512 xmpp xmpp-bot xmpp-client-library xmpp-component
Last synced: 12 May 2025
https://github.com/maiha/jq.cr
thin JSON::Any wrapper to emulate jq for crystal
Last synced: 14 Aug 2025
https://github.com/naqvis/lz4.cr
Crystal bindings to the LZ4 compression library
compression compression-library crystal crystal-bindings crystal-lang crystal-language lz4 lz4-compression lz4-frame
Last synced: 12 May 2025
https://github.com/elbywan/crystal-lsp
An implementation of the Language Server Protocol written in Crystal
crystal crystal-lang lsp lsp-server
Last synced: 07 May 2025
https://github.com/ivo-balbaert/programming_crystal
Code from the book: Programming Crystal (PragProg 2017-18)
crystal crystal-language crystallang
Last synced: 12 May 2025
https://github.com/sija/backtracer.cr
Crystal shard aiming to assist with parsing backtraces into a structured form.
Last synced: 14 Apr 2025
https://github.com/maiha/pretty.cr
Something attentive, conservative and pretty stuff for Crystal
backward-compatibility crystal utility
Last synced: 14 Aug 2025
https://github.com/mamantoha/crympd
A minimalistic web-based MPD client
crystal mpd mpdclient music-player-daemon websocket
Last synced: 06 May 2025
https://github.com/dlanileonardo/sendgrid.cr
Simple lib to send mail using Sendgrid in Crystal-Lang
Last synced: 10 Apr 2025
https://github.com/icy-arctic-fox/espresso
Lightweight wrapper around GLFW for Crystal
crystal glfw glfw-bindings glfw3 opengl
Last synced: 10 Apr 2025
https://github.com/bcardiff/miniserver
A small static file server built in crystal
Last synced: 10 Oct 2025
https://github.com/angarsk8/chat-app-demo
Chat application developed with Kemal, React, ES2015 and PostgreSQL
chat-application crystal javascript kemal react
Last synced: 31 Jul 2025
https://github.com/sija/gphoto2.cr
Crystal shard wrapping libgphoto2
crystal gphoto2 libgphoto2 photography
Last synced: 15 Apr 2025
https://github.com/syeopite/lens
A multiformat internationalization (i18n) shard for Crystal.
crystal gettext hacktoberfest i18n internationalization l10n l18n language locale localization translation
Last synced: 30 Apr 2025
https://github.com/Sija/backtracer.cr
Crystal shard aiming to assist with parsing backtraces into a structured form.
Last synced: 13 May 2025
https://github.com/crystal-community/autolink.cr
:link: Auto link for Crystal
Last synced: 13 Sep 2025
https://github.com/geocrystal/kd_tree
Crystal implementation of "K-Dimensional Tree" and "N-Nearest Neighbors"
crystal data-structures k-dimensional priority-queue tree-structure
Last synced: 03 May 2025
https://github.com/blacksmoke16/crylog
Flexible logging framework based on Monolog
Last synced: 27 Mar 2025
https://github.com/Sija/gphoto2.cr
Crystal shard wrapping libgphoto2
crystal gphoto2 libgphoto2 photography
Last synced: 27 Mar 2025
https://github.com/jhass/github_desktop_notifications
Display your Github notifications via libnotify
crystal github-notifications libnotify
Last synced: 11 Jul 2025
https://github.com/geopjr/sabo-tabby
🐈⬛🏳️⚧️ Extremely Fast Static File Server
benchmarks cli config crystal customization mustache performance sabo-tabby sabotabby server static-file-server
Last synced: 07 May 2025
https://github.com/chances/wgpu-crystal
Bindings to wgpu-native for the Crystal programming language
3d-graphics compute-shaders crystal graphics graphics-library webgpu
Last synced: 26 Jul 2025
https://github.com/athena-framework/framework
A web framework created from various Athena components
Last synced: 21 Apr 2025
https://github.com/RomainFranceschini/quartz
Quartz - A Crystal Modeling & Simulation framework
crystal discrete-event dsde modeling multipdevs pdevs quartz simulation
Last synced: 14 May 2025
https://github.com/kimvex/mongodb-crystal
Library for use of MongoDB driver
crystal crystal-lang mongo mongodb
Last synced: 12 May 2025
https://github.com/Sija/ksuid.cr
Crystal implementation of K-Sortable Globally Unique IDs
coordination crystal ksuid unique-id uuid
Last synced: 27 Mar 2025
https://github.com/hertzdevil/pack.cr
Crystal compile-time (un)pack macros from Perl / Ruby
crystal deserialization pack perl ruby serialization unpack
Last synced: 16 Mar 2025
https://github.com/crisward/mailer
Simple Email Sending Client for Mailgun & Sendgrid services in crystal
crystal email mailgun sendgrid
Last synced: 22 Oct 2025
https://github.com/novika-lang/novika
🪱 Novika is a free-form, moldable, interpreted programming language
crystal interpreter language novika programming-language repl
Last synced: 09 Apr 2025
https://github.com/randomstate/openssl_ext
Crystal bindings for OpenSSL RSA
Last synced: 15 Apr 2025
https://github.com/marioariasc/monyet
An implementation of the monkey language on Crystal
crystal monkey monkey-language
Last synced: 03 Aug 2025
