๐ฏ๐ต Made in Japan
Discover Japan's Leading Open Source Projects: Explore top-notch open source initiatives hailing from the vibrant tech community of Japan.
TOP Crystal Projects
tbrand/router.cr
Minimum High Performance Middleware for Crystal Web Server.
tbrand/neph
A modern command line job processor, similar with make command
arcage/crystal-email
Simple e-mail sending library
mosop/cli
Yet another Crystal library for building command-line interface applications.
takaakit/design-pattern-examples-in-crystal
UML model and code examples of design patterns for Crystal. The model is created with Astah.
noellabo/pub-relay
A service-type ActivityPub actor that will re-broadcast anything sent to it to anyone who subscribes to it.
rhysd/Crisp
Lisp dialect implemented with Crystal
tbrand/mssh
Simple and powerful job executor on remote nodes. ๐
rosylilly/power_assert.cr
PowerAssert provides the more powerful assertion to you.
hakatashi/ac-library.cr
Port of ac-library implemented in Crystal Programming Language
tobyapi/crystalg
Algorithm Library for Crystal
tbpgr/crystal_samples
S-YOU/h2o.cr
h2o bindings for Crystal
agatan/ncurses.cr
NCurses bindings for Crystal
adlerhsieh/iceberg
A full-stack web framework in Crystal-lang
mosop/optarg
Yet another Crystal library for parsing command-line options and arguments.
kojix2/chatgpt-cli
Yet another ChatGPT command line tool
tbrand/zir
Realizes to write macros in any scripts into any languages.
y2k2mt/sse.cr
A Crystal shard for Server-Sent Events
tbrand/iemon
agatan/watchbird
file monitoring library with Crystal
tobyapi/timecop.cr
A timecop inspire library allowing "time travel", "freezing time" and "time acceleration".
kubo39/syscall.cr
syscall interface for Crystal
ne-sachirou/git-cleanup-branch
[Deprecated] Cleanup Git merged branches interactively at both local and remote.
mosop/teeplate
A Crystal library for rendering multiple template files.
arcage/ip2country
IP(v4) address to country name converter for Crystal
tbrand/awesome-logger
๐ Awesome Logger is SIMPLE and FLEXIBLE logger for Crystal applications. ๐
S-YOU/dpdk.cr
Crystal bindings to Intel's DPDK at wire rate packet processing.
astellon/quartz
Audio I/O library for Crystal based on PortAudio
5t111111/ruby_extension_with_crystal
Write Ruby extensions with Crystal
tobyapi/hash_ring
Implementation of Consistent Hash Ring for Crystal
mosop/run
A Crystal library for running commands in reusable contexts.
nob-suz/Crystallian
Crystal-language information
masak1yu/crystalforce
A Crystal client for the Salesforce REST api.
mosop/callback
A Crystal library for defining and invoking callbacks.
rhysd/ezoe
`ezoe` command written in Crystal
arcage/ast_viewer.cr
Visualize the AST structure from ASTNode object, source file, or source code string.
kojix2/deepl-cli
Simple command line tool for DeepL
mosop/string_inflection
Yet another Crystal library for string inflection.
dmytro/shell.cr
Small simplistic helper class for executing shell commands in Crystal.
pine/crystal-notify-slack
๐ Slack notify CLI tool
rhysd/crdoc
CLI tool to search and open documentation for Crystal language
adlerhsieh/lake
Recursive tasks managed easily
tbrand/tokoroten
Using multiple processes in Crystal
tobyapi/cavorite
(Work in progress)Actor model library for Crystal
nbw/battlesnake_crystal
A bounty battlesnake written in Crystal.
tbrand/pixvas
Create pixel image in your terminal
mosop/stdio
A small Crystal library for capturing standard I/O streams.
tobyapi/fluent-logger-crystal
A Fluentd client for Crystal.
sonny8988/bobobot
HipChat bot for lunch
kojix2/nuplot
Running Gnuplot with Crystal.
arcage/net_sample.cr
arcage/crystal-pathname
Crystal implementation of Ruby's Pathname object.
nwtgck/math2img
Convert LaTeX Math to image
tbrand/roulette
Simulate, Analyze and Play Roulette with Algorithms
astellon/soundio-cr
A Crystal bindings for libsoundio
astellon/osc-crystal
An Implementation of Open Sound Control in Crystal
mosop/have_files
A Crystal Spec/spec2 matcher for testing if two file trees are identical.
YusukeHosonuma/assert-diff
Assert equals with readable diff report for Crystal.
karupanerura/router-simple.cr
simple path router inspired by Router::Simple.
mosop/crystal_plus
An extension of the Crystal standard library.
mofumofu3n/reveal.cr
ryuji/soma
Structured logging utility
fukaoi/crystal-ethereum
Ethereum blockchain client sdk for Crystal
nukata/little-scheme-in-crystal
A Scheme interpreter in Crystal with first-class continuations
tobyapi/concurrent_revisions.cr
Concurrent Revisions for Crystal
dtan4/aws4_signer.cr
shiba-hiro/kemal-exception-handler
kemal-exception-handler is a sample implementation of the original exception handler for Kemal web app.
pine/crystal-lua
[EXPERIMENTAL] Lua embedded in Crystal
mihyaeru21/crybot
A twitter bot written in Crystal.
y2k2mt/aws-credentials.cr
Get AWS credentials in various ways.
namusyaka/crystal-tsort
Topological sort implementation for Crystal
arcage/pipeline
Line by line text processor for crystal
tbpgr/vup
Crystal bumpup version tool
tobyapi/channels.cr
Extensions for Crystal Channel
shiba-hiro/note-api-by-crystal
note-api-by-crystal is a sample web api project implemented by Crystal
rosylilly/semver
Semantic Versioning module for Crystal
arcage/crystal-ipaddr
IP address for Crystal language
adlerhsieh/basic_http_server
A basic kind-of web framework app in Crystal-lang
ktanaka101/each-progress
Simple progress bar
arcage/tarball.cr
TAR archive reader of Crystal
hakatashi/procon
msroz/kindlify
๐CLI for sending files to Kindle via gmail
LightningDAISY/embedded_model
Redis like embedded key-value-store
pine/crystal-github-simple
:octocat: Simple GitHub API client for Crystal
y2k2mt/exiv2.cr
Crystal binding for libgexiv2
pine/Shiro
โ๏ธ Shiro is the very cute Slack notification bot
pine/crystal-rfc5988
๐ Parser and builder for RFC 5988 Link Header Field
pine/BestCommiter
๐ [ARCHIVED] The GitHub commits count tool for developer
pine/crystal-resque-client
๐ Simple Resque queue client for Crystal
kojix2/tiktoken-cr
Tiktoken for Crystalists
suin/crystal-playground
๐พ Crystal่จ่ชใๅๅผทใใใจใใใในใใใใใๆ่ปฝใซ่ฉฆใใใใฎใชใใธใใชใงใใ
kojix2/blingfire-crystal
sonota88/vm2gol-v2-crystal
toy compiler
y2k2mt/awscr-ssm
A crystal shard for AWS System Manager
ne-sachirou/diff-with-json
diff with JSON structure.
upamune/httpstat
httpstat crystal implementation
arcage/multi_log_reader
Concurrently reading multiple text files which are growing and may be rotated.
takaishi/fluent-logger-crystal
Fluentd logger for Crystal.
lugia-kun/tempdir
Crystal library for creating temporary directories