An open API service indexing awesome lists of open source software.

Crystal

Crystal is a programming language with friendly syntax, static type checking and modern stdlib. It compiles into efficient, easy-to-distribute native code.

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

crystal kemal

Last synced: 12 May 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

crystal elasticsearch-client

Last synced: 16 Mar 2025

https://github.com/icyleaf/wasp

A Static Site Generator written in Crystal.

crystal static-site-generator

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/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/Sija/crystal-dash-docset

Dash docset generator for Crystal

crystal dash dash-docset docset documentation

Last synced: 14 Nov 2025

https://github.com/crystal-loot/nox

Procfile-based process manager written in Crystal

crystal crystal-lang procfile

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.

crystal testing timecop

Last synced: 09 Jul 2025

https://github.com/amberframework/jasper-helpers

A library of helpers for working with html for apps Crystal

assets crystal database form helper i18n jasper numbers

Last synced: 23 Jun 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/stumpycr/stumpy_gif

Write GIF images in pure Crystal

crystal gif image-processing

Last synced: 26 Jul 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

crystal textmate

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

crystal haversine-formula

Last synced: 25 Feb 2026

https://github.com/ysbaddaden/crystal-cmark

Crystal wrapper for libcmark, the reference CommonMark C library

commonmark crystal markdown

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

crystal textmate

Last synced: 14 Nov 2025

https://github.com/erdnaxeli/clip

Deserialize CLI parameters to an object, with errors and help management.

cli crystal crystal-lang

Last synced: 11 Jul 2025

https://github.com/amauryt/crystal-duckdb

Crystal language bindings for DuckDB

crystal duckdb

Last synced: 06 May 2025

https://github.com/lanjoni/scylladb-crystal-driver

ScyllaDB Crystal Driver 💎

binding cql crystal driver scylladb

Last synced: 12 May 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/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.

binding crystal opengl

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

crystal parser peg

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/matthewmcgarvey/focus

Crystal SQL query builder

crystal orm

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.

crystal

Last synced: 12 May 2025

https://github.com/neuralegion/sslscanner

SSL Scanner written in Crystal

crystal openssl scanner security ssl

Last synced: 07 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/woodruffw/x_do.cr

Crystal bindings for libxdo (xdotool)

crystal libxdo x11

Last synced: 16 Apr 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

crystal slack

Last synced: 02 May 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 ♨️

crystal redis

Last synced: 20 Apr 2025

https://github.com/athena-framework/console

Allows for the creation of CLI based commands

component crystal

Last synced: 21 Apr 2025

https://github.com/ennerperez/crystaldecisions

Crystal Reports NuGets Packages for .NET Framework

crystal crystal-reports sap

Last synced: 11 Jul 2025

https://github.com/dougeverly/slack.cr

Slack Real Time Messaging API in Crystal

crystal slack

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/ravern/cake

Build utility for Crystal

build crystal utility

Last synced: 10 Oct 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/maiha/jq.cr

thin JSON::Any wrapper to emulate jq for crystal

crystal jq json

Last synced: 14 Aug 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.

crystal parser stacktrace

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

crystal sendgrid

Last synced: 10 Apr 2025

https://github.com/q9f/bip39.cr

a native library implementing bip-39 purely for the crystal language.

bip39 bitcoin crystal mnemonic shard

Last synced: 06 May 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

crystal docker http-server

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.

crystal parser stacktrace

Last synced: 13 May 2025

https://github.com/crystal-community/autolink.cr

:link: Auto link for Crystal

autolink 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

crystal logger logging

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/dougeverly/daemonize.cr

Daemonize a crystal process.

crystal

Last synced: 08 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

component crystal

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

crystal 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