Repositories list

• timecop.cr

  Public

  crystal-community/timecop.cr’s past year of commit activity
  A testing library that allows "time travel," "freezing time," and "time acceleration". Inspired by the ruby-timecop library.

  testingcrystaltimecop

  testingcrystaltimecop

  Crystal

  •

  MIT License

  •44 forks•2121 stars•22 issues•00 pull requests•Updated Apr 10, 2026Apr 10, 2026

• crystal-image

  Public

  crystal-community/crystal-image’s past year of commit activity
  Common image API for Crystal

  crystalimagecrystal-lang+ 1

  crystalimagecrystal-langcrystal-shard

  Crystal

  •

  MIT License

  •00 forks•22 stars•00 issues•00 pull requests•Updated Jan 17, 2026Jan 17, 2026

• hardware

  Public
  Get CPU, Memory and Network informations of the running OS and its processes

  crystalcpusystem+ 3

  crystalcpusystemhardwarememorynetwork

  Crystal

  •

  ISC License

  •99 forks•7676 stars•44 issues•11 pull request•Updated Dec 21, 2025Dec 21, 2025

• msgpack-crystal

  Public

  crystal-community/msgpack-crystal’s past year of commit activity
  MessagePack implementation in Crystal msgpack.org[Crystal]

  Crystal

  •1818 forks•146146 stars•33 issues•00 pull requests•Updated Nov 24, 2025Nov 24, 2025

• crystal-patterns

  Public

  crystal-community/crystal-patterns’s past year of commit activity
  :book: Examples of GOF patterns written in Crystal

  crystaloopcrystal-patterns+ 1

  crystaloopcrystal-patternsgof-patterns

  Crystal

  •

  MIT License

  •1313 forks•304304 stars•00 issues•00 pull requests•Updated Nov 20, 2025Nov 20, 2025

• jwt

  Public
  JWT implementation in Crystal

  jwtcrystal

  jwtcrystal

  Crystal

  •

  MIT License

  •2424 forks•212212 stars•11 issue•00 pull requests•Updated Oct 19, 2025Oct 19, 2025

• crystal-ann

  Public archive

  crystal-community/crystal-ann’s past year of commit activity
  Web site to announce new Crystal projects, blog posts, updates and other work activities

  crystalannouncementsamber-framework

  crystalannouncementsamber-framework

  CSS

  •

  MIT License

  •1111 forks•4848 stars•00 issues•00 pull requests•Updated Mar 31, 2025Mar 31, 2025

• toml.cr

  Public
  TOML parser for Crystal

  Crystal

  •1616 forks•6565 stars•33 issues•33 pull requests•Updated Apr 6, 2024Apr 6, 2024

• zeromq-crystal

  Public

  crystal-community/zeromq-crystal’s past year of commit activity
  Crystal

  •

  MIT License

  •1717 forks•5050 stars•33 issues•22 pull requests•Updated Sep 18, 2023Sep 18, 2023

• kiwi

  Public

  crystal-community/kiwi’s past year of commit activity
  A unified Crystal interface for key-value stores.

  crystalmemorystore

  crystalmemorystore

  Crystal

  •

  MIT License

  •66 forks•6767 stars•22 issues•11 pull request•Updated Aug 31, 2023Aug 31, 2023

• bloom_filter

  Public
  Bloom filter implementation in Crystal lang

  crystalbloom-filter

  crystalbloom-filter

  Crystal

  •

  MIT License

  •77 forks•3636 stars•11 issue•11 pull request•Updated Aug 28, 2023Aug 28, 2023

• cr-i18n

  Public
  Crystal

  •00 forks•33 stars•00 issues•00 pull requests•Updated Jan 2, 2023Jan 2, 2023

• kilt-components

  Public
  Crystal

  •00 forks•22 stars•00 issues•00 pull requests•Updated Dec 19, 2022Dec 19, 2022

• cr-config

  Public
  An all-in-one configuration library to handle any possible configuration need

  Crystal

  •

  MIT License

  •11 fork•99 stars•00 issues•00 pull requests•Updated Oct 11, 2022Oct 11, 2022

• cr-color-logging

  Public
  Crystal

  •

  MIT License

  •00 forks•11 star•00 issues•00 pull requests•Updated Jun 14, 2022Jun 14, 2022

• crystal-kcov

  Public
  Crystal

  •22 forks•1919 stars•11 issue•00 pull requests•Updated Apr 17, 2022Apr 17, 2022

• icr

  Public
  Interactive console for Crystal programming language

  crystalrepl

  crystalrepl

  Crystal

  •

  MIT License

  •4040 forks•505505 stars•1212 issues•11 pull request•Updated Sep 26, 2021Sep 26, 2021

• future.cr

  Public
  Crystal

  •

  MIT License

  •44 forks•3434 stars•11 issue•00 pull requests•Updated Apr 8, 2021Apr 8, 2021

• cossack

  Public
  Simple and flexible HTTP client for Crystal with middleware and test support.

  middlewarecrystal

  middlewarecrystal

  Crystal

  •

  GNU Lesser General Public License v3.0

  •1111 forks•110110 stars•44 issues•55 pull requests•Updated Jul 8, 2020Jul 8, 2020

• autolink.cr

  Public
  :link: Auto link for Crystal

  crystalautolink

  crystalautolink

  Crystal

  •

  MIT License

  •44 forks•1717 stars•00 issues•00 pull requests•Updated May 11, 2020May 11, 2020

• leveldb

  Public
  Crystal binding for LevelDB

  crystalleveldb

  crystalleveldb

  Crystal

  •

  GNU Lesser General Public License v3.0

  •77 forks•4040 stars•00 issues•22 pull requests•Updated Mar 6, 2020Mar 6, 2020

• snappy-crystal

  Public archive
  Snappy bindings for Crystal

  Crystal

  •

  MIT License

  •00 forks•77 stars•00 issues•00 pull requests•Updated Dec 3, 2019Dec 3, 2019

• bluetooth

  Public
  Bluetooth Bluez binding in Crystal

  crystalbluetoothbluez

  crystalbluetoothbluez

  Crystal

  •

  MIT License

  •22 forks•1111 stars•22 issues•00 pull requests•Updated Oct 11, 2018Oct 11, 2018

• crystal-notifications

  Public
  A library for notifications, this started as a port from ActiveSupport::Notifications

  Crystal

  •

  MIT License

  •00 forks•1616 stars•00 issues•00 pull requests•Updated Mar 11, 2018Mar 11, 2018

• crystal-libraries-needed

  Public
  A list of libraries that are needed or wanted for the Crystal-Language

  shardscommunity-drivenwanted+ 1

  shardscommunity-drivenwantedneeded

  33 forks•143143 stars•8585 issues•00 pull requests•Updated Aug 26, 2017Aug 26, 2017

• community

  Public
  The crystal community

  00 forks•1010 stars•22 issues•00 pull requests•Updated Aug 11, 2017Aug 11, 2017