🇩🇪 Made in Germany
Discover Germany's Leading Open Source Projects: Explore top-notch open source initiatives hailing from the vibrant tech community of Germany.
TOP Crystal Projects
oprypin/nightly.link
Downloads the latest "nightly" build/artifact from a continuous testing workflow
stefanwille/crystal-redis
Full featured Redis client for Crystal
oprypin/crsfml
Crystal bindings to SFML multimedia/game library
ziprandom/graphql-crystal
a graphql implementation for crystal
Papierkorb/qt5.cr
Qt5 bindings for Crystal, based on Bindgen
lucaong/immutable
Thread-safe, persistent, immutable collections for the Crystal language
waterlink/active_record.cr
Active Record pattern implementation for Crystal.
Papierkorb/bindgen
Binding and wrapper generator for C/C++ libraries
jhass/crystal-gobject
gobject-introspection for Crystal
dhruvrajvanshi/Moonshine
Web framework for Crystal language [DEPRECATED in favour of kemal]
straight-shoota/crinja
Implementation of Jinja2 template language in Crystal
porras/crul
Command line HTTP client written in Crystal
waterlink/spec2.cr
Enhanced `spec` testing library for [Crystal](http://crystal-lang.org/).
dhruvrajvanshi/crz
Functional programming library for https://github.com/crystal-lang/crystal
Papierkorb/fancyline
Readline-esque library with fancy features
ziprandom/cltk
A crystal port of the Ruby Language Toolkit
jhass/carc.in
Compile & run code in
denisdefreyne/glove
Crystal framework for making games
hanneskaeufler/crytic
Mutation testing for crystal.
oprypin/crystal-imgui
Crystal bindings to Dear ImGui
Papierkorb/cannon
Lightning fast data serialization and RPC for Crystal
dhruvrajvanshi/crystal-futures
Future type implementation for Crystal language
repomaa/crouter
a standalone router for crystal
oprypin/crsfml-examples
Simple games made with CrSFML
splattael/hashids.cr
A Crystal shard to generate YouTube-like hashes from one or many numbers. Use hashids when you do not want to expose your database ids to the user.
waterlink/mocks.cr
General purpose mocking library for Crystal.
l3kn/raytracer
CPU Raytracer written in the crystal language
spinscale/crystal-aws-lambda
Create and deploy AWS lambdas written in Crystal
oprypin/crystal-chipmunk
Crystal bindings to Chipmunk, a fast and lightweight 2D game physics library
Papierkorb/torrent
A BitTorrent library in pure Crystal
denisdefreyne/rcpu
VM emulator and assembler written in Crystal
dhruvrajvanshi/crystal-parsec
Parsing DSL for Crystal language inspired by Haskell library Parsec
Papierkorb/cute
An event-centric publisher/subscribe model for objects inspired by the Qt framework
miry/medup
Download all content from Medium and Dev.to to local folder
jhass/DeBot
My IRC Bot
straight-shoota/sass.cr
Compile Sass/SCSS to CSS in Crystal (libsass binding)
comandeo/crystal-memcached
Memcached client for Crystal language
waterlink/crystal-mysql
Basic mysql bindings for crystal.
Ragmaanir/microtest
Small test framework, because it has power asserts as the only assertion.
TPei/circuit_breaker
Implementation of the circuit breaker pattern in crystal
splattael/libnotify.cr
Libnotify for Crystal
CodeSteak/Nuummite
Nuummite is a tiny persistent embedded key-value store for Crystal!
simplylu/WeaponizeCrystal
Experiments in weaponizing Crystal for offensive operations.
jrester/EBNF.cr
Work with (E)BNF and bison/YACC Grammar: Parsing, FIRST/FOLLOW set, CNF, Conversions, LR and LL parsing tables
repomaa/ncurses-crystal
ncurses bindings for crystal
nilsmartel/Glass
Gui Library written in Crystal
porras/session
Cookie based sessions in Crystal HTTP applications
porras/tlcr
Simple terminal-based client for TLDR pages, written in Crystal. TLDR pages is a collection of simplified and community-driven man pages.
straight-shoota/sanitize
Crystal library for transforming HTML/XML trees to sanitize HTML from untrusted sources
vypxl/scar
A game engine written in Crystal using crsfml
greenbigfrog/discordtipbot
A tip bot for use on discordapp.com
straight-shoota/md2pdf
Convert markdown files to pdf with flexible template and stylesheet
straight-shoota/criss
Instantaneous static site site generator and server in Crystal
Ragmaanir/soegen
Elasticsearch client library for crystal, similar to rubys stretcher gem
cocol-project/cocol
Rapid blockchain prototyping
waterlink/timecop.cr
Mock with `Time.now` with the power of time travel, time freeze and time scale.
ziprandom/crystal-dfa
A Crystal Implementation of a Thompson NFA/DFA Regex Matcher
oprypin/crystal-imgui-sfml
Crystal bindings to ImGui-SFML
Angarsk8/chat-app-demo
Chat application developed with Kemal, React, ES2015 and PostgreSQL
oprypin/critter
Chat bot relaying messages between IRC and Gitter
jhass/github_desktop_notifications
Display your Github notifications via libnotify
TPei/progress_bar.cr
A ProgressBar implementation for the Crystal programming language
denisdefreyne/inari
A collection of games written in Crystal
greyblake/crystal-google_translate
Google Translate client for Crystal
comandeo/syslog.cr
Syslog client implementation for Crystal
waterlink/query.cr
Query abstraction for Crystal Language. Used by active_record.cr library.
porras/mock
Doubles (stubs and mocks) library for Crystal, inspired by the API of rspec-mocks
greyblake/crystal-magma
Crystal interpreter
miry/samples
Practice algorithms and data structure on different languages
repomaa/open_api.cr
Type safe OpenAPI spec library
mishushakov/syntaxer
Multi-backend syntax highlighter for Crystal
Hadeweka/Crystal2Day
Simple 2D game framework in Crystal
repomaa/crystal-jsonapi
JSON API serializing for crystal
beanieboi/aws-signer.cr
This library signs your HTTP requests using AWS v4
lipanski/keepass
Keepass KDBX v2/v3 parser for Crystal
Papierkorb/json_rpc
JSON-RPC client and server library
oprypin/crystal-dbus
Crystal bindings to D-Bus
waterlink/quick.cr
QuickCheck implementation for Crystal Language
wonderix/crystal-tds
threez/hpdf.cr
Create PDF documents in crystal using libhpdf / libharu
mntns/sodium
A fast library for graph/network manipulation
treagod/marten-turbo
Enhance your Marten app with dynamic updates using Turbo Frames!
markauskas/http2
HTTP/2 implementation in Crystal
Papierkorb/fuse
libFUSE bindings for Crystal
Papierkorb/toka
A type-safe, object-oriented option parser
waterlink/postgres_adapter.cr
Postgres adapter for [active_record.cr](https://github.com/waterlink/active_record.cr). Uses [crystal-pg](https://github.com/will/crystal-pg) driver.
stefanwille/crystal-redis-examples
Examples for crystal-redis
TPei/observable
Implementation of the Observer pattern in crystal
oprypin/crystal-raw-gl
Crystal bindings to OpenGL and GLU
rodrigopinto/can_use
🤔 Can I use? CanUse is a minimalist feature toggle/flag for crystal, based on yaml file.
Hadeweka/SDL-Crystal-Bindings
Crystal binding generator for raw SDL methods
badBlackShark/shrkbot
My general purpose Discord bot, that allows you to turn features on or off.
greyblake/crystal-aitk
Artificial Intelligence Tool Kit for Crystal lang
waterlink/spec2-mocks.cr
This library connects spec2.cr and mocks.cr, effectively enabling 'have_received' expectation for spec2.
oprypin/crystal-fuzzing
Fuzzing for Crystal programming language
Papierkorb/tuntap
TUN/TAP driver for Crystal
denisdefreyne/rcpu-lang
Language that compiles to RCPU assembly
fabianloewe/crystal-shared-lib
A very simple compilable Crystal library to test https://github.com/hyronx/crystal/tree/feature/shared_library
splattael/bigbrother
Server overseer.
splattael/erl_nif.cr
WIP: Erlang NIF in Crystal