Repositories list

• crystal-book

  Public
  Crystal reference with language specification, manuals and learning materials

  documentationcrystaltutorial

  documentationcrystaltutorial

  Makefile

  •

  Other

  •255255 forks•424424 stars•6060 issues•1818 pull requests•Updated Apr 8, 2026Apr 8, 2026

• crystal-planet

  Public
  RSS feed aggregation

  Handlebars

  •

  MIT License

  •00 forks•22 stars•11 issue•00 pull requests•Updated Apr 8, 2026Apr 8, 2026

• crystal-website

  Public
  crystal-lang.org website

  websitecrystalhomepage

  websitecrystalhomepage

  SCSS

  •7777 forks•6565 stars•2929 issues•88 pull requests•Updated Apr 8, 2026Apr 8, 2026

• distribution-scripts

  Public

  crystal-lang/distribution-scripts’s past year of commit activity
  Shell

  •2424 forks•4141 stars•3434 issues•99 pull requests•Updated Apr 8, 2026Apr 8, 2026

• shards

  Public
  Dependency manager for the Crystal language

  Crystal

  •

  Apache License 2.0

  •109109 forks•790790 stars•7878 issues•1010 pull requests•Updated Apr 8, 2026Apr 8, 2026

• install-crystal

  Public
  GitHub Action: Install Crystal programming language

  crystalshardsgithub-actions

  crystalshardsgithub-actions

  JavaScript

  •

  MIT License

  •1010 forks•7373 stars•77 issues•11 pull request•Updated Apr 7, 2026Apr 7, 2026

• crystal

  Public

  crystal-lang/crystal’s past year of commit activity
  The Crystal Programming Language

  programming-languagecrystalcompiler+ 2

  programming-languagecrystalcompilerhacktoberfestcrystal-language

  Crystal

  •

  Apache License 2.0

  •1.7k1.7k forks•20k20k stars•1.7k1.7k issues•264264 pull requests•Updated Apr 7, 2026Apr 7, 2026

• rfcs

  Public
  RFCs repository for Crystal

  Nix

  •

  Apache License 2.0

  •99 forks•2929 stars•11 issue•1010 pull requests•Updated Mar 24, 2026Mar 24, 2026

• test-ecosystem

  Public
  Shell

  •66 forks•1111 stars•55 issues•55 pull requests•Updated Mar 23, 2026Mar 23, 2026

• crystal-mysql

  Public
  MySQL connector for Crystal

  mysqlcrystaldatabase+ 1

  mysqlcrystaldatabasedriver

  Crystal

  •

  MIT License

  •3636 forks•111111 stars•1313 issues•99 pull requests•Updated Mar 19, 2026Mar 19, 2026

• perf-tools

  Public
  An assortment of tools to track resources in Crystal applications

  Crystal

  •

  MIT License

  •44 forks•4545 stars•1414 issues•22 pull requests•Updated Mar 10, 2026Mar 10, 2026

• crystal-molinillo

  Public
  A generic dependency resolution algorithm. Ported from https://github.com/CocoaPods/Molinillo/

  Crystal

  •

  MIT License

  •22 forks•3333 stars•22 issues•00 pull requests•Updated Feb 11, 2026Feb 11, 2026

• html_builder

  Public
  DSL for creating HTML

  Crystal

  •

  MIT License

  •2121 forks•7878 stars•33 issues•00 pull requests•Updated Feb 9, 2026Feb 9, 2026

• crystal-sqlite3

  Public
  SQLite3 bindings for Crystal

  crystaldatabasedriver+ 1

  crystaldatabasedriversqlite3

  Crystal

  •

  MIT License

  •2828 forks•158158 stars•2222 issues•33 pull requests•Updated Jan 28, 2026Jan 28, 2026

• clang.cr

  Public
  libclang bindings for crystal (including automatic C bindings generator)

  Crystal

  •

  Other

  •99 forks•5050 stars•22 issues•00 pull requests•Updated Jan 26, 2026Jan 26, 2026

• crystal-db

  Public
  Common db api for crystal

  crystaldatabase

  crystaldatabase

  Crystal

  •

  MIT License

  •5757 forks•312312 stars•3434 issues•55 pull requests•Updated Nov 19, 2025Nov 19, 2025

• libffi

  Public
  A portable foreign-function interface library.

  C

  •

  Other

  •805805 forks•33 stars•00 issues•11 pull request•Updated Oct 8, 2025Oct 8, 2025

• crystal_lib

  Public
  Automatic binding generator for native libraries in Crystal

  Crystal

  •3131 forks•141141 stars•2020 issues•44 pull requests•Updated Sep 18, 2025Sep 18, 2025

• crystal-readline

  Public
  Crystal bindings to GNU Readline Library

  Crystal

  •

  MIT License

  •88 forks•2424 stars•11 issue•22 pull requests•Updated Sep 6, 2025Sep 6, 2025

• heroku-buildpack-crystal

  Public archive
  Heroku buildpack for Crystal

  Shell

  •

  MIT License

  •8282 forks•124124 stars•00 issues•00 pull requests•Updated Jan 7, 2025Jan 7, 2025

• json_mapping.cr

  Public archive
  Provides the legacy `JSON.mapping` macro method

  Crystal

  •

  MIT License

  •1414 forks•2020 stars•00 issues•00 pull requests•Updated Jan 7, 2025Jan 7, 2025

• yaml_mapping.cr

  Public archive
  Provides the legacy `YAML.mapping` macro method

  Crystal

  •

  MIT License

  •33 forks•99 stars•00 issues•00 pull requests•Updated Jan 7, 2025Jan 7, 2025

• crystal-random

  Public archive
  Crystal

  •

  MIT License

  •44 forks•55 stars•00 issues•00 pull requests•Updated Dec 4, 2024Dec 4, 2024

• crystal-infrastructure

  Public archive
  Infrastructure automation for Crystal related resources

  Jinja

  •

  BSD 3-Clause "New" or "Revised" License

  •11 fork•55 stars•00 issues•00 pull requests•Updated Nov 20, 2024Nov 20, 2024

• logger.cr

  Public archive
  Crystal

  •

  MIT License

  •33 forks•1414 stars•00 issues•00 pull requests•Updated Nov 20, 2024Nov 20, 2024

• crystal-intro

  Public
  Talk that introduces the Crystal programming language

  JavaScript

  •22 forks•33 stars•00 issues•00 pull requests•Updated Oct 4, 2024Oct 4, 2024

• crystal-presents

  Public
  Playground for creating crystal presentations with live coding

  JavaScript

  •

  Creative Commons Attribution Share Alike 4.0 International

  •66 forks•4242 stars•00 issues•00 pull requests•Updated Jun 15, 2024Jun 15, 2024

• osc-docker

  Public
  Dockerfile for pushing to Open Build Service

  Dockerfile

  •

  Apache License 2.0

  •11 fork•22 stars•00 issues•00 pull requests•Updated May 3, 2024May 3, 2024

• .github

  Public
  Default community health files

  11 fork•22 stars•00 issues•00 pull requests•Updated Dec 15, 2023Dec 15, 2023

• newsletter

  Public
  Template for Crystal newsletter on Mailchimp

  HTML

  •

  Other

  •1414 forks•11 star•00 issues•00 pull requests•Updated Nov 8, 2023Nov 8, 2023