631 lines
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631 lines
50 KiB
Plaintext
[](https://github.com/vshymanskyy/StandWithUkraine/blob/main/docs/README.md)
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<p align="center"><img src="logo/logotype_horizontal.jpg" alt="awesome-crystal"></p>
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# Awesome Crystal
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[](https://awesome.re)
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A curated list of awesome Crystal code and resources. Inspired by [awesome](https://github.com/sindresorhus/awesome) and [awesome-awesomeness](https://github.com/bayandin/awesome-awesomeness).
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The goal is to have projects mostly stable and useful for the community.
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Search shards at [shards.info](https://shards.info) or follow announcements [Crystal [ANN]](https://crystal-ann.com) for more.
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Contributions are welcome. Please take a quick look at the [contribution guidelines](https://github.com/veelenga/awesome-crystal/blob/master/.github/CONTRIBUTING.md) first.
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* [Awesome Crystal](#awesome-crystal)
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* [Algorithms and Data structures](#algorithms-and-data-structures)
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* [Blockchain](#blockchain)
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* [C Bindings](#c-bindings)
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* [Caching](#caching)
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* [CLI Builders](#cli-builders)
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* [CLI Utils](#cli-utils)
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* [Code Analysis and Metrics](#code-analysis-and-metrics)
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* [Compression](#compression)
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* [Configuration](#configuration)
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* [Converters](#converters)
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* [Cryptography](#cryptography)
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* [Data Formats](#data-formats)
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* [Data Generators](#data-generators)
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* [Database Drivers/Clients](#database-driversclients)
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* [Database Tools](#database-tools)
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* [Debugging](#debugging)
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* [Dependency Injection](#dependency-injection)
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* [Email](#email)
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* [Environment Management](#environment-management)
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* [Examples and funny stuff](#examples-and-funny-stuff)
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* [Framework Components](#framework-components)
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* [Game Development](#game-development)
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* [GUI Development](#gui-development)
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* [HTML Builders](#html-builders)
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* [HTML/XML parsing](#htmlxml-parsing)
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* [HTTP](#http)
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* [Image Processing](#image-processing)
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* [Implementations/Compilers](#implementationscompilers)
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* [Internationalization](#internationalization)
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* [Logging and monitoring](#logging-and-monitoring)
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* [Machine Learning](#machine-learning)
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* [Markdown/Text Processors](#markdowntext-processors)
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* [Misc](#misc)
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* [Network Protocols](#network-protocols)
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* [Networking](#networking)
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* [ORM/ODM Extensions](#ormodm-extensions)
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* [Package Management](#package-management)
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* [Processes and Threads](#processes-and-threads)
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* [Project Generators](#project-generators)
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* [Queues and Messaging](#queues-and-messaging)
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* [Routing](#routing)
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* [Scheduling](#scheduling)
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* [Science and Data analysis](#science-and-data-analysis)
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* [Search](#search)
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* [Serverless Computing](#serverless-computing)
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* [System](#system)
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* [Task management](#task-management)
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* [Template Engine](#template-engine)
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* [Testing](#testing)
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* [Third-party APIs](#third-party-apis)
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* [Validation](#validation)
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* [Web Frameworks](#web-frameworks)
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* [Community](#community)
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* [Unofficial](#unofficial)
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* [Resources](#resources)
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* [Official Documentation Translations](#official-documentation-translations)
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* [Services and Apps](#services-and-apps)
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* [Tools](#tools)
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* [DevOps](#devops)
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* [Editor Plugins](#editor-plugins)
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* [LSP Language Server Protocol Implementations](#lsp-language-server-protocol-implementations)
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* [Shell Plugins](#shell-plugins)
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## Algorithms and Data structures
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* [bisect](https://github.com/spider-gazelle/bisect) - Inserting values into a sorted array
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* [blurhash.cr](https://github.com/Sija/blurhash.cr) - [BlurHash](https://github.com/woltapp/blurhash) implementation
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* [crie](https://github.com/c910335/crie) - Compile-time Trie
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* [CrOTP](https://github.com/philnash/crotp) - HOTP and TOTP implementation for two factor authentication
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* [crystal-linked-list](https://github.com/abvdasker/crystal-linked-list) - Implementation of Linked List
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* [crystaledge](https://github.com/unn4m3d/crystaledge) - A pure Vector Math library
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* [crystalg](https://github.com/tobyapi/crystalg) - A Generic Algorithm Library
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* [crystalline](https://github.com/jtomschroeder/crystalline) - A collection of containers and algorithms
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* [csuuid](https://github.com/wyhaines/csuuid.cr) - A Chronologically Sortable UUID
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* [edits.cr](https://github.com/tcrouch/edits.cr) - Collection of edit distance algorithms
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* [fzy](https://github.com/hugopl/fzy) - A Crystal port of awesome Fzy project fuzzy finder algorithm
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* [Goban](https://github.com/soya-daizu/goban) - A fast and efficient QR Code implementation
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* [graphlb](https://github.com/mettuaditya/graphlb) - Collection of graph datastructure and algorithms
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* [haversine](https://github.com/geocrystal/haversine) - An Implementation of the Haversine formula
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* [HKDF](https://github.com/spider-gazelle/HKDF) - HMAC-based Extract-and-Expand Key Derivation Function [rfc5869](https://www.rfc-editor.org/rfc/rfc5869)
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* [kd_tree](https://github.com/geocrystal/kd_tree) - An implementation of "K-Dimensional Tree" and "N-Nearest Neighbors"
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* [ksuid.cr](https://github.com/Sija/ksuid.cr) - K-Sortable Globally Unique IDs
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* [markov](https://github.com/mccallofthewild/markov) - Build Markov Chains and run Markov Processes
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* [multiset.cr](https://github.com/tcrouch/multiset.cr) - Implementation of a multiset
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* [named_information](https://github.com/spider-gazelle/named_information) - Naming Things with Hashes [rfc6920](https://datatracker.ietf.org/doc/html/rfc6920)
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* [qr-code](https://github.com/spider-gazelle/qr-code) - QR Code generator
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* [radix](https://github.com/luislavena/radix) - Radix Tree implementation
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* [s2_cells](https://github.com/spider-gazelle/s2_cells) - [S2 Geometry](https://s2geometry.io/devguide/s2cell_hierarchy.html) for spatial indexing
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* [secure-remote-password](https://github.com/spider-gazelle/secure-remote-password) - SRP-6a protocol for authentication over an insecure network
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* [SPAKE2+](https://github.com/spider-gazelle/SPAKE2_plus) - Password Authenticated Key Exchange (PAKE) protocol, comparable to SRP-6a
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* [splay_tree_map](https://github.com/wyhaines/splay_tree_map.cr) - Splay Tree implementation that conforms to the Hash ducktype
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* [verhoeff](https://github.com/spider-gazelle/verhoeff) - Implementation of the Verhoeff checksum algorithm
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## Blockchain
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* [Axentro](https://github.com/Axentro/Axentro) - A custom blockchain platform
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* [Cocol](https://github.com/cocol-project/cocol) - A minimal blockchain testbed
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* [secp256k1.cr](https://github.com/q9f/secp256k1.cr) - Elliptic curve used in the public-private-key cryptography
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## C bindings
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* [augeas.cr](https://github.com/fernandes/augeas.cr) - Bindings for [Augeas](https://augeas.net/)
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* [clang.cr](https://github.com/crystal-lang/clang.cr) - Libclang bindings
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* [crt.cr](https://github.com/maiha/crt.cr) - Bindings for libncursesw and crt
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* [crystal-gsl](https://github.com/konovod/crystal-gsl) - Bindings for [GNU Scientific Library](https://www.gnu.org/software/gsl/)
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* [crystal-hunspell](https://github.com/mamantoha/crystal-hunspell) - Bindings for [Hunspell](https://hunspell.github.io/)
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* [duktape.cr](https://github.com/jessedoyle/duktape.cr) - Bindings for the [Duktape](https://github.com/svaarala/duktape) javascript engine
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* [fftw.cr](https://github.com/firejox/fftw.cr) - Bindings for [FFTW](https://fftw.org/) library
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* [gphoto2.cr](https://github.com/Sija/gphoto2.cr) - Bindings for the [libgphoto2](http://www.gphoto.org/) library
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* [icu.cr](https://github.com/olbat/icu.cr) - Bindings for the [ICU](http://site.icu-project.org/) library
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* [libnotify.cr](https://github.com/splattael/libnotify.cr) - Bindings for Libnotify
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* [nlopt.cr](https://github.com/konovod/nlopt.cr) - Bindings for [NLOpt](https://nlopt.readthedocs.io/en/latest/)
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* [pcap.cr](https://github.com/maiha/pcap.cr) - Bindings for libpcap
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* [pledge.cr](https://github.com/chris-huxtable/pledge.cr) - Bindings for OpenBSD's `pledge(2)`
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* [ssh2.cr](https://github.com/spider-gazelle/ssh2.cr) - Bindings for libssh2 library
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* [syslog.cr](https://github.com/chris-huxtable/syslog.cr) - Bindings for `syslog`
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* [v4l2.cr](https://github.com/spider-gazelle/v4l2.cr) - Bindings for [Video4Linux2](https://en.wikipedia.org/wiki/Video4Linux)
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* [wasmer-crystal](https://github.com/naqvis/wasmer-crystal) - Bindings for the `wasmer` WebAssembly runtime
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* [win32cr](https://github.com/mjblack/win32cr) - Bindings for Win32 API
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* [x_do.cr](https://github.com/woodruffw/x_do.cr) - Bindings for libxdo ([`xdotool`](https://github.com/jordansissel/xdotool))
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## Caching
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* [crystal-memcached](https://github.com/comandeo/crystal-memcached) - Implementation of a memcached client
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## CLI Builders
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* [admiral](https://github.com/jwaldrip/admiral.cr) - A robust DSL for writing command line interfaces
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* [Athena Console](https://github.com/athena-framework/console) - Allows for the creation of CLI based commands
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* [clicr](https://github.com/j8r/clicr) - A simple declarative command line interface builder
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* [clim](https://github.com/at-grandpa/clim) - Slim command line interface builder
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* [Cling](https://github.com/devnote-dev/cling) - A modular, non-macro-based command line interface library
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* [commander](https://github.com/mrrooijen/commander) - Command-line interface builder
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* [Keimeno](https://github.com/robacarp/keimeno) - A lightweight text user interface library in Crystal
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* [OptionParser](https://crystal-lang.org/api/OptionParser.html) - command-line options processing (Crystal stdlib)
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* [Phreak](https://github.com/shinzlet/phreak) - A highly flexible Crystal CLI builder in the style of OptionParser
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## CLI Utils
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* [climate](https://github.com/Sija/climate.cr) - Tiny tool to make your CLI output 🌈 coloured
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* [coin](https://github.com/caian-org/coin) - Command-line application that performs currency conversion via the [Fixer API](https://fixer.io)
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* [cride](https://github.com/j8r/cride) - A light CLI text editor/IDE
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* [git-repository](https://github.com/place-labs/git-repository) - A git cli wrapper querying and cloning remote repositories with minimal data transfer
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* [hetzner-k3s](https://github.com/vitobotta/hetzner-k3s) - A CLI tool to quickly create and manage Kubernetes clusters in Hetzner Cloud
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* [lff](https://github.com/mkdika/lff-cr) - Simple and straightforward large files finder utility in command line
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* [meet](https://github.com/ryanprior/meet) - Start a jitsi meeting quickly from the comfort of your command line
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* [oq](https://github.com/Blacksmoke16/oq) - A performant, and portable jq wrapper to facilitate the consumption and output of formats other than JSON; using [jq](https://github.com/stedolan/jq) filters to transform the data
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* [progress_bar.cr](https://github.com/TPei/progress_bar.cr) - A simple and customizable progress bar
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* [tablo](https://github.com/hutou/tablo) - A flexible terminal table generator
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* [tallboy](https://github.com/epoch/tallboy) - Generate ASCII character tables with support for spanning cells over multiple columns
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## Code Analysis and Metrics
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* [ameba](https://github.com/crystal-ameba/ameba) - A static code analysis tool
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* [linguist.cr](https://github.com/microgit-com/linguist.cr) - Using multiple ways to find programming language used in files, based on Github's Linguist
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## Compression
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* [Crystar](https://github.com/naqvis/crystar) - Readers and writers of Tar archive format
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* [Gzip](https://crystal-lang.org/api/Compress/Gzip.html) - readers and writers of gzip format (Crystal stdlib)
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* [polylines.cr](https://github.com/BuonOmo/polylines.cr) — compression of series of coordinates
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* [snappy](https://github.com/naqvis/snappy) - Snappy compression format reader/writer for Crystal
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* [Zip](https://crystal-lang.org/api/Compress/Zip.html) - readers and writers of zip format (Crystal stdlib)
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* [Zlib](https://crystal-lang.org/api/Compress/Zlib.html) - readers and writers of zlib format (Crystal stdlib)
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* [zstd.cr](https://github.com/didactic-drunk/zstd.cr) - Bindings for [Zstandard](https://github.com/facebook/zstd) compression library
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## Configuration
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* [cr-dotenv](https://github.com/gdotdesign/cr-dotenv) - Loads .env file
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* [Envy](https://github.com/grottopress/envy) - Load environment variables from YAML
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* [envyable](https://github.com/philnash/envyable.cr) - A simple YAML to ENV config loader
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* [habitat](https://github.com/luckyframework/habitat) - Type safe configuration for your classes and modules
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* [totem](https://github.com/icyleaf/totem) - Load and parse a configuration in JSON, YAML, dotenv formats
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## Converters
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* [base62.cr](https://github.com/Sija/base62.cr) - Base62 encoder/decoder, well suited for url-shortening
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* [crunits](https://github.com/spider-gazelle/crunits) - Tool for converting units of measure (miles to kilometers, celsius to fahrenheit etc)
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* [money](https://github.com/crystal-money/money) - Handling money and currency conversion with ease (almost complete port of [RubyMoney](https://github.com/RubyMoney/money))
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* [sass.cr](https://github.com/straight-shoota/sass.cr) - Compile SASS/SCSS to CSS ([libsass](https://github.com/sass/libsass/) binding)
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## Cryptography
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* [cmac](https://github.com/spider-gazelle/cmac) - Crystal implementation of Cipher-based Message Authentication Code (CMAC)
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* [ed25519](https://github.com/spider-gazelle/ed25519) - the Ed25519 elliptic curve public-key signature system
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described in [RFC 8032]
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* [monocypher.cr](https://github.com/konovod/monocypher.cr) - Crystal wrapper for the Monocypher crypto library
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* [sodium.cr](https://github.com/didactic-drunk/sodium.cr) - Crystal wrapper for the libsodium crypto API
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## Data Formats
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* [BinData](https://github.com/spider-gazelle/bindata) - Binary data parser helper with an [ASN.1](https://en.wikipedia.org/wiki/Abstract_Syntax_Notation_One) parser
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* [config.cr](https://github.com/chris-huxtable/config.cr) - Easy to use configuration format parser
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* [crinder](https://github.com/c910335/crinder) - Class based json renderer
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* [Crystalizer](https://github.com/j8r/crystalizer) - (De)serialize any Crystal object; supporting JSON, YAML, and Byte formats out of the box
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* [CSV](https://crystal-lang.org/api/CSV.html) - parsing and generating for comma-separated values (Crystal stdlib)
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* [front_matter.cr](https://github.com/chris-huxtable/front_matter.cr) - Separates a files front matter from its content
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* [geoip2.cr](https://github.com/delef/geoip2.cr) - GeoIP2 reader
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* [HAR](https://github.com/NeuraLegion/har) - HAR (HTTP Archive) parser
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* [INI](https://crystal-lang.org/api/INI.html) - INI file parser (Crystal stdlib)
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* [JSON](https://crystal-lang.org/api/JSON.html) - parsing and generating JSON documents (Crystal stdlib)
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* [json-schema](https://github.com/spider-gazelle/json-schema) - convert JSON serializable classes into a [JSON Schema](https://json-schema.org/) representation
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* [JSON::OnSteroids](https://github.com/anykeyh/json_on_steroids) - handle and mutate JSON document easily
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* [maxminddb.cr](https://github.com/delef/maxminddb.cr) - MaxMindDB reader
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* [toml.cr](https://github.com/crystal-community/toml.cr) - TOML parser
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* [XML](https://crystal-lang.org/api/XML.html) - parsing and generating XML documents (Crystal stdlib)
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* [YAML](https://crystal-lang.org/api/YAML.html) - parsing and generating YAML documents (Crystal stdlib)
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## Data Generators
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* [faker](https://github.com/askn/faker) - A library for generating fake data
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* [hashids.cr](https://github.com/splattael/hashids.cr) - A library to generate YouTube-like ids from one or many numbers
|
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* [prime](https://github.com/wontruefree/prime) - A prime number generator
|
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|
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## Database Drivers/Clients
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* [couchdb.cr](https://github.com/TechMagister/couchdb.cr) - CouchDB client
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* [cryomongo](https://github.com/elbywan/cryomongo) - MongoDB driver
|
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* [crystal-db](https://github.com/crystal-lang/crystal-db) - Common db api
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* [crystal-ldap](https://github.com/spider-gazelle/crystal-ldap) - LDAP client
|
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* [crystal-mysql](https://github.com/crystal-lang/crystal-mysql) - MySQL connector for Crystal
|
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* [crystal-pg](https://github.com/will/crystal-pg) - A Postgres driver
|
||
* [crystal-redis](https://github.com/stefanwille/crystal-redis) - Full featured Redis client
|
||
* [crystal-rethinkdb](https://github.com/kingsleyh/crystal-rethinkdb) - Driver for RethinkDB / RebirthDB
|
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* [crystal-sqlite3](https://github.com/crystal-lang/crystal-sqlite3) - SQLite3 bindings
|
||
* [leveldb](https://github.com/crystal-community/leveldb) - Crystal bindings for LevelDB
|
||
* [rocksdb.cr](https://github.com/maiha/rocksdb.cr) - RocksDB client
|
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* [surrealdb.cr](https://github.com/yorci/surrealdb.cr) - Unoffical SurrealDB HTTP & Websocket Client
|
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|
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## Database Tools
|
||
* [migrate](https://github.com/vladfaust/migrate.cr) - A simpler database migration tool with transactions
|
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|
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## Debugging
|
||
* [backtracer.cr](https://github.com/Sija/backtracer.cr) - Shard aiming to assist with parsing backtraces into a structured form
|
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* [debug.cr](https://github.com/Sija/debug.cr) - `debug!(…)` macro for `pp`-style debugging
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|
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## Dependency Injection
|
||
* [Athena Dependency Injection](https://github.com/athena-framework/dependency-injection) - Robust dependency injection service container framework
|
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* [Crystal-DI](https://github.com/funk-yourself/crystal-di) - Lightweight DI Container
|
||
* [HardWire](https://github.com/jerometwell/hardwire) - A compile-time non-intrusive dependency injection system
|
||
* [syringe](https://github.com/Bonemind/syringe) - A simple and basic dependency injection shard for crystal
|
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|
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## Email
|
||
* [carbon](https://github.com/luckyframework/carbon) - Fun, testable, and adapter-based email library
|
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* [crystal-email](https://github.com/arcage/crystal-email) - Simple e-mail sending library
|
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* [CrystalEmail](https://git.sceptique.eu/Sceptique/CrystalEmail) - A RFC compliant Email validator
|
||
* [sendgrid.cr](https://github.com/dlanileonardo/sendgrid.cr) - Simple Sendgrid Client
|
||
|
||
## Environment Management
|
||
* [asdf-crystal](https://github.com/marciogm/asdf-crystal) - Plugin for asdf version manager
|
||
* [crenv](https://github.com/crenv/crenv) - Crystal version manager
|
||
* [rcm.cr](https://github.com/maiha/rcm.cr) - Redis Cluster Manager
|
||
|
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## Examples and funny stuff
|
||
* [blackjack-cr](https://github.com/gdonald/blackjack-cr) - Console Blackjack
|
||
* [crystal-patterns](https://github.com/crystal-community/crystal-patterns) - Examples of GOF patters
|
||
* [crystalworld](https://github.com/vladfaust/crystalworld) - [realworld.io](https://realworld.io) back-end API implementation
|
||
* [exercism-crystal](https://github.com/exercism/crystal) - Exercism exercises
|
||
* [try.cr](https://github.com/maiha/try.cr) - Try monad
|
||
|
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## Framework Components
|
||
* [Athena Event Dispatcher](https://github.com/athena-framework/event-dispatcher) - A Mediator and Observer pattern event library
|
||
* [Athena Negotiation](https://github.com/athena-framework/negotiation) - Framework agnostic content negotiation library
|
||
* [device_detector](https://github.com/creadone/device_detector) - Shard for detect device by user agent string
|
||
* [Exception Page](https://github.com/crystal-loot/exception_page) - An exceptional exception page for Crystal web libraries and frameworks
|
||
* [graphql](https://github.com/graphql-crystal/graphql) - Type-safe [GraphQL](http://graphql.org) server implementation
|
||
* [graphql-crystal](https://github.com/ziprandom/graphql-crystal) - [GraphQL](http://graphql.org) implementation
|
||
* [kemal-session](https://github.com/kemalcr/kemal-session) - Session handler for Kemal
|
||
* [mochi](https://github.com/awcrotwell/mochi) - Authentication shard inspired by Devise supporting: Authenticable, Confirmable, Invitable & more
|
||
* [motion.cr](https://github.com/awcrotwell/motion.cr) - Object oriented frontend library for Amber
|
||
* [multi-auth](https://github.com/msa7/multi_auth) - Standardized multi-provider OAuth2 authentication (inspired by omniauth)
|
||
* [praetorian](https://github.com/ilanusse/praetorian) - Minimalist authorization library inspired by Pundit
|
||
* [Shield](https://github.com/grottopress/shield) - Comprehensive security for *Lucky* framework
|
||
* [shrine.cr](https://github.com/jetrockets/shrine.cr) - File Attachment toolkit for Crystal applications. Heavily inspired by Shrine for Ruby
|
||
* [tourmaline](https://github.com/protoncr/tourmaline) - Telegram bot framework with an API loosely based on [telegraf.js](https://telegraf.js.org/)
|
||
|
||
## Game Development
|
||
* [CrSFML](https://github.com/oprypin/crsfml) - Bindings to [SFML](https://www.sfml-dev.org/) multimedia/game library
|
||
* [crystal-chipmunk](https://github.com/oprypin/crystal-chipmunk) - Bindings to [Chipmunk](http://chipmunk-physics.net/), a fast and lightweight 2D game physics library
|
||
* [crystal-imgui-sfml](https://github.com/oprypin/crystal-imgui-sfml) - Bindings to integrate [Dear ImGui](https://github.com/ocornut/imgui) into an [SFML](https://www.sfml-dev.org/) project
|
||
* [entitas.cr](https://github.com/spoved/entitas.cr) - A Entity Component System Framework for Crystal
|
||
* [MyECS](https://github.com/konovod/myecs) - A Sparse Entity Component System Framework for Crystal
|
||
* [Raylib-cr](https://github.com/sol-vin/raylib-cr) - Direct bindings to [Raylib](https://raylib.com), which supports Linux, Windows, and Mac
|
||
* [SDL-Crystal-Bindings](https://github.com/Hadeweka/SDL-Crystal-Bindings) - Direct (unsafe) bindings to [SDL2](https://www.libsdl.org/), intended for writing own game libraries
|
||
|
||
## GUI Development
|
||
* [crystal-imgui](https://github.com/oprypin/crystal-imgui) - Bindings to [Dear ImGui](https://github.com/ocornut/imgui), an immediate-mode graphical UI library
|
||
* [GTK4.cr](https://github.com/hugopl/gtk4.cr) - Bindings for [GTK4](https://docs.gtk.org/gtk4/overview.html) with Crystalized API
|
||
* [Iu](https://github.com/grkek/iu) - UI framework based on the [Fusion/libui.cr](https://github.com/Fusion/libui.cr) library, with custom elements and modified bindings from [hedron-crystal/hedron](https://github.com/hedron-crystal/hedron)
|
||
* [Ultimate GTK4 Crystal Guide](https://ultimate-gtk4-crystal-guide.geopjr.dev/) - Learn how to create premium GTK4 apps in Crystal
|
||
|
||
## HTML Builders
|
||
* [blueprint](https://github.com/gunbolt/blueprint) - Write reusable and testable HTML templates in plain Crystal
|
||
* [form_builder.cr](https://github.com/westonganger/form_builder.cr) - Dead simple HTML form builder for Crystal with built-in support for many popular UI libraries such as Bootstrap
|
||
* [to_html](https://github.com/sbsoftware/to_html.cr) - The fastest HTML builder engine for Crystal
|
||
* [Water](https://github.com/shootingfly/water) - A library for writing HTML in plain Crystal
|
||
|
||
## HTML/XML Parsing
|
||
* [docx_cr_converter](https://github.com/aristotelesbr/docx_cr_converter) - parse DOCX Word
|
||
* [myhtml](https://github.com/kostya/myhtml) - Fast HTML5 Parser that includes CSS selectors
|
||
|
||
## HTTP
|
||
* [Cable](https://github.com/cable-cr/cable) - An ActionCable "port" to Crystal, framework agnostic, 100% compatible with the ActionCable JS Client
|
||
* [cossack](https://github.com/crystal-community/cossack) - Simple flexible HTTP client
|
||
* [crest](https://github.com/mamantoha/crest) - Simple HTTP and REST client, inspired by the Ruby's RestClient gem
|
||
* [crul](https://github.com/porras/crul) - Command line HTTP client
|
||
* [digest-auth](https://github.com/spider-gazelle/digest-auth) - Digest authentication
|
||
* [halite](https://github.com/icyleaf/halite) - Crystal HTTP Requests with a chainable REST API, built-in sessions and loggers
|
||
* [http-multiserver.cr](https://github.com/vladfaust/http-multiserver.cr) - Mounting multiple servers via routes (a.k.a. URL mapping)
|
||
* [http-params-serializable](https://github.com/vladfaust/http-params-serializable) - HTTP params (de)serialization, applicable to URL queries and URL-encoded forms
|
||
* [http-protection](https://github.com/rogeriozambon/http-protection) - Protection against typical web attacks
|
||
* [http2](https://github.com/ysbaddaden/http2) - HTTP/2 Protocol Implementation
|
||
* [HTTP::Client](https://crystal-lang.org/api/HTTP/Client.html) - HTTP client (Crystal stdlib)
|
||
* [HTTP::Server](https://crystal-lang.org/api/HTTP/Server.html) - HTTP server (Crystal stdlib)
|
||
* [HTTP::WebSocket](https://crystal-lang.org/api/HTTP/WebSocket.html) - HTTP WebSocket client (Crystal stdlib)
|
||
* [link-header](https://github.com/spider-gazelle/link-header) - HTTP Link Header Parser
|
||
* [ntlm](https://github.com/spider-gazelle/ntlm) - NTLM authentication
|
||
* [proxy-fetcher.cr](https://github.com/nbulaj/proxy-fetcher.cr) - Proxy lists fetching & validating library
|
||
* [sse.cr](https://github.com/y2k2mt/sse.cr) - [Server-Sent Events](https://html.spec.whatwg.org/multipage/server-sent-events.html) client
|
||
## Image processing
|
||
* [celestine](https://github.com/celestinecr/celestine) - Create SVG images using a DSL
|
||
* [ffmpeg](https://github.com/spider-gazelle/ffmpeg) - FFmpeg bindings that works with StumpyPNG to extract frames
|
||
* [Pluto](https://github.com/phenopolis/pluto) - A fast and convenient image processing library
|
||
* [stumpy_png](https://github.com/stumpycr/stumpy_png) - Read and write PNG images
|
||
|
||
## Implementations/Compilers
|
||
* [charly](https://github.com/charly-lang) - Charly Programming Language
|
||
* [cltk](https://github.com/ziprandom/cltk) - A crystal port of the Ruby Language Toolkit
|
||
* [crisp](https://github.com/rhysd/Crisp) - Lisp dialect implemented with Crystal
|
||
* [LinCAS-lang](https://github.com/LinCAS-lang) - A programming language for scientific computation
|
||
* [mint-lang](https://github.com/mint-lang/mint) - A refreshing programming language for the front-end web
|
||
* [myst-lang](https://github.com/myst-lang/) - A practical, dynamic language designed to be written and understood as easily and efficiently as possible
|
||
* [novika](https://github.com/novika-lang/novika) - A free-form, moldable, interpreted programming language
|
||
* [runic-lang](https://github.com/runic-lang) - In-design toy language
|
||
|
||
## Internationalization
|
||
|
||
* [crystal-i18n](https://github.com/crystal-i18n/i18n) - An internationalization library inspired by Ruby-I18n
|
||
* [i18n.cr](https://github.com/vladfaust/i18n.cr) - Internationalization shard
|
||
* [Lens](https://github.com/syeopite/lens) - A multiformat internationalization (i18n) shard for Crystal. Supports Gettext, Ruby YAML, etc.
|
||
* [Rosetta](https://github.com/wout/rosetta) - A blazing fast internationalization (i18n) library with compile-time key lookup supporting YAML and JSON formats
|
||
|
||
## Logging and monitoring
|
||
* [crafana](https://github.com/spoved/crafana.cr) - A [Grafana](https://grafana.com/) library to help autogenerate dashboards
|
||
* [fiber_metrics.cr](https://github.com/didactic-drunk/fiber_metrics.cr) - Track run time, wait time, or memory allocations per `Fiber`, method or block
|
||
* [Log](https://crystal-lang.org/api/Log.html) - logging utility (Crystal stdlib)
|
||
* [statsd.cr](https://github.com/miketheman/statsd.cr) - [Statsd](https://github.com/etsy/statsd) client library
|
||
|
||
## Machine Learning
|
||
* [ai4cr](https://github.com/drhuffman12/ai4cr) - Artificial Intelligence (based on https://github.com/SergioFierens/ai4r)
|
||
* [Cadmium](https://github.com/cadmiumcr/cadmium) - NLP library based heavily on [natural](https://github.com/NaturalNode/natural)
|
||
* [crystal-fann](https://github.com/NeuraLegion/crystal-fann) - FANN (Fast Artifical Neural Network) binding
|
||
* [mxnet.cr](https://github.com/toddsundsted/mxnet.cr) - Bindings for [MXNet](https://mxnet.incubator.apache.org/)
|
||
* [shainet](https://github.com/NeuraLegion/shainet) - SHAInet (Neural Network in pure crystal)
|
||
|
||
## Markdown/Text Processors
|
||
* [cr-cmark-gfm](https://github.com/amauryt/cr-cmark-gfm) - Crystal C bindings for cmark-gfm to work with Commonmark and Github Flavored Markdown
|
||
* [markd](https://github.com/icyleaf/markd) - Yet another markdown parser built for speed, Compliant to CommonMark specification
|
||
|
||
## Misc
|
||
* [aasm.cr](https://github.com/veelenga/aasm.cr) - Easy to use finite state machine for Crystal classes
|
||
* [any_hash.cr](https://github.com/Sija/any_hash.cr) - Recursive Hash with better JSON::Any included
|
||
* [anyolite](https://github.com/Anyolite/anyolite) - Full mruby interpreter with simple bindings, allowing for easy scripting support in projects
|
||
* [burocracia.cr](https://github.com/vinibrsl/burocracia.cr) - burocracia.cr the dependecyless shard to validate, generate and format Brazilian burocracias such as CPF, CNPJ and CEP
|
||
* [callbacks](https://github.com/vladfaust/callbacks.cr) - Expressive callbacks module
|
||
* [circuit_breaker](https://github.com/TPei/circuit_breaker) - Implementation of the circuit breaker pattern
|
||
* [CrSignals](https://github.com/firejox/CrSignals) - Signals/slots notification library
|
||
* [crystal-binary_parser](https://github.com/DanSnow/crystal-binary_parser) - Binary parser
|
||
* [crystal-web-framework-stars](https://github.com/isaced/crystal-web-framework-stars) - Web frameworks for Crystal, most starred on Github
|
||
* [crz](https://github.com/dhruvrajvanshi/crz) - Functional programming library
|
||
* [defined](https://github.com/wyhaines/defined.cr) - macros for conditional compilation based on constant definitions, version requirements, or environment variable settings
|
||
* [emoji.cr](https://github.com/veelenga/emoji.cr) - Emoji library
|
||
* [gphoto2-web.cr](https://github.com/Sija/gphoto2-web.cr) - Web API for libgphoto2
|
||
* [immutable](https://github.com/lucaong/immutable) - Implementation of thread-safe, persistent, immutable collections
|
||
* [iterm2](https://github.com/toddsundsted/iterm2) - Display images within the terminal using the ITerm2 Inline Images Protocol
|
||
* [monads](https://github.com/alex-lairan/monads) - Monad implementation
|
||
* [observable](https://github.com/TPei/observable) - Implementation of the observer pattern
|
||
* [pinger](https://github.com/spider-gazelle/pinger) - Ping IP addresses and DNS entries without requiring sudo
|
||
* [port_midi](https://github.com/jimm/crystal_port_midi) - Crystal C bindings for the PortMIDI cross-platform MIDI I/O library
|
||
* [retriable.cr](https://github.com/Sija/retriable.cr) - Simple DSL to retry failed code blocks
|
||
* [serf-handler.cr](https://github.com/wyhaines/serf-handler.cr) - Framework for building Serf handlers, with a suite of useful builtin capabilities
|
||
* [simple_retry](https://github.com/spider-gazelle/simple_retry) - Simple tool for retrying failed code blocks
|
||
* [sslscan.cr](https://github.com/NeuraLegion/sslscan.cr) - Crystal shard wrapping the rbsec/sslscan utility
|
||
* [version_tools](https://github.com/anicholson/crystal-version-tools) - Version-dependent behaviour, specified at compile-time
|
||
* [wafalyzer](https://github.com/NeuraLegion/wafalyzer) - Web Application Firewall (WAF) Detector - shard + cli
|
||
* [zaru_crystal](https://github.com/szTheory/zaru_crystal) - Filename sanitization
|
||
|
||
## Network Protocols
|
||
* [amqp-client.cr](https://github.com/cloudamqp/amqp-client.cr) - AMQP 0-9.1, a messaging protocol, implemented by eg. RabbitMQ
|
||
* [connect-proxy](https://github.com/spider-gazelle/connect-proxy) - Connect method style of HTTP tunnelling / HTTP proxy
|
||
* [cr-xmpp](https://github.com/naqvis/cr-xmpp) - XMPP/Jabber Library
|
||
* [Crirc](https://github.com/Meoowww/Crirc) - IRC protocol implementation (Client, Server, Bots)
|
||
* [crystal-bacnet](https://github.com/spider-gazelle/crystal-bacnet) - BACnet protocol implementation with BACnet/IP client
|
||
* [crystal-dns](https://gitlab.com/jgillich/crystal-dns) - DNS protocol implementation and resolver
|
||
* [crystal-json-socket](https://github.com/foi/crystal-json-socket) - JSON-socket client & server implementation. Inspired by and compatible with [node-json-socket](https://github.com/sebastianseilund/node-json-socket/) and [ruby-json-socket](https://github.com/foi/ruby-json-socket)
|
||
* [crystal-mqtt](https://github.com/spider-gazelle/crystal-mqtt) - A MQTT client
|
||
* [crystal-snmp](https://github.com/spider-gazelle/crystal-snmp) - An SNMP implementation with version 1, 2c and 3 support
|
||
* [fast_irc.cr](https://github.com/RX14/fast_irc.cr) - Fast IRC parser/generator
|
||
* [jwt](https://github.com/crystal-community/jwt) - Implementation of JWT (JSON Web Token)
|
||
* [mDNS](https://github.com/spider-gazelle/mdns) - DNS Service Discovery and multicast DNS
|
||
* [mqtt-client.cr](https://github.com/84codes/mqtt-client.cr) - A fast and lightweight MQTT client
|
||
* [msgpack-crystal](https://github.com/crystal-community/msgpack-crystal) - MessagePack library
|
||
* [OAuth](https://crystal-lang.org/api/OAuth.html) - OAuth consumer (Crystal stdlib)
|
||
* [OAuth2](https://crystal-lang.org/api/OAuth2.html) - OAuth2 client (Crystal stdlib)
|
||
* [OpenSSL](https://crystal-lang.org/api/OpenSSL.html) - bindings to libssl (Crystal stdlib)
|
||
* [simple_rpc](https://github.com/kostya/simple_rpc) - RPC Server and Client for Crystal. Implements msgpack-rpc protocol
|
||
* [stomp](https://github.com/spider-gazelle/stomp) - STOMP protocol
|
||
* [telnet.cr](https://github.com/spider-gazelle/telnet.cr) - Telnet protocol
|
||
* [transfer_more](https://git.sceptique.eu/Sceptique/transfer_more) - Clone of transfer.sh to uploads files
|
||
|
||
## Networking
|
||
* [ipaddress.cr](https://github.com/Sija/ipaddress.cr) - Library to handle IPv4 and IPv6 addresses
|
||
* [mac-address](https://github.com/automatico/mac-address) - Library for working with MAC addresses
|
||
|
||
## ORM/ODM Extensions
|
||
* [avram](https://github.com/luckyframework/avram) - A database wrapper for reading, writing, and migrating Postgres databases
|
||
* [clear](https://github.com/anykeyh/clear) - ORM specialized to PostgreSQL only but with advanced features
|
||
* [crecto](https://github.com/Crecto/crecto) - Database wrapper, based on Ecto
|
||
* [granite](https://github.com/amberframework/granite) - ORM for Postgres, Mysql, Sqlite
|
||
* [jennifer.cr](https://github.com/imdrasil/jennifer.cr) - Active Record pattern implementation with flexible query chainable builder and migration system
|
||
* [rethinkdb-orm](https://github.com/spider-gazelle/rethinkdb-orm) - ORM for RethinkDB / RebirthDB
|
||
|
||
## Package Management
|
||
* [shards](https://github.com/crystal-lang/shards) - Dependency manager for the Crystal
|
||
|
||
## Processes and Threads
|
||
* [await_async](https://github.com/anykeyh/await_async) - Add keywords await & async in Crystal Lang
|
||
* [concurrent.cr](https://github.com/didactic-drunk/concurrent.cr) - Simplified concurrency using streams/pipelines, waitgroups, semaphores, smores and more
|
||
* [neph](https://github.com/tbrand/neph) - A modern command line job processor that can execute jobs concurrently
|
||
* [promise](https://github.com/spider-gazelle/promise) - A Promise implementation with type inference
|
||
* [werk](https://github.com/marghidanu/werk) - Dead simple task runner with concurrent support, ideal for local CI
|
||
|
||
## Project Generators
|
||
* [crystal_lib](https://github.com/crystal-lang/crystal_lib) - Automatic binding generator for native libraries
|
||
* [fez](https://github.com/jwoertink/fez) - A Kemal application generator
|
||
* [libgen](https://github.com/olbat/libgen) - Automatic bindings generator configured using JSON/YAML files
|
||
|
||
## Queues and Messaging
|
||
* [crafka](https://github.com/BT-OpenSource/crafka) - Apache Kafka library utilizing `librdkafka`
|
||
* [mosquito](https://github.com/mosquito-cr/mosquito/) - Redis backed periodic and ad hoc job processing
|
||
* [NATS.io](https://github.com/nats-io/nats.cr) - NATS client
|
||
* [sidekiq.cr](https://github.com/mperham/sidekiq.cr) - Simple, efficient job processing
|
||
|
||
## Routing
|
||
* [orion](https://github.com/obsidian/orion) - A minimal, rails-esque routing library
|
||
* [router.cr](https://github.com/tbrand/router.cr) - Minimum but powerful http router for HTTP::Server
|
||
|
||
## Scheduling
|
||
* [crystime](https://gitlab.com/crystallabs/crystime) - Advanced time, calendar, schedule, and remind library
|
||
* [schedule.cr](https://github.com/hugoabonizio/schedule.cr) - Run periodic tasks
|
||
* [tasker](https://github.com/spider-gazelle/tasker) - A high precision scheduler including timezone aware cron jobs
|
||
|
||
## Science and Data analysis
|
||
* [alea](https://github.com/nin93/alea) - Repeatable sampling, CDF and other utilities to work with probability distributions
|
||
* [ishi](https://github.com/toddsundsted/ishi) - Graph plotting package with a small API and sensible defaults powered by gnuplot
|
||
* [linalg](https://github.com/konovod/linalg) - Linear algebra library inspired by MATLAB and SciPy.linalg
|
||
* [num.cr](https://github.com/crystal-data/num.cr) - Numerical computing library supporting N-Dimensional data
|
||
* [predict.cr](https://github.com/RX14/predict.cr) - Satellite prediction library using the sgp4 model
|
||
* [quartz](https://github.com/RomainFranceschini/quartz) - Modeling and simulation framework
|
||
|
||
## Search
|
||
* [hermes](https://github.com/imdrasil/hermes.cr) - Data Mapper pattern implementation for ElastiSearch
|
||
|
||
## Serverless Computing
|
||
* [crystal_openfaas](https://github.com/TPei/crystal_openfaas/) - Template to enable crystal as first class citizens in OpenFaaS
|
||
* [secrets-env](https://github.com/spider-gazelle/secrets-env) - Extends ENV module to read values injected by docker / kubernetes secrets and other orchestration tools
|
||
|
||
## System
|
||
* [baked_file_system](https://github.com/schovi/baked_file_system) - Virtual file system implementation
|
||
* [hardware](https://github.com/crystal-community/hardware) - Get CPU, Memory and Network informations of the running OS and its processes
|
||
|
||
## Task management
|
||
* [cake](https://github.com/axvm/cake) - Production-ready Make-like utility tool
|
||
* [sam](https://github.com/imdrasil/sam.cr) - Another one Rake-like task manager with namespacing and arguments system
|
||
|
||
## Template Engine
|
||
* [crinja](https://github.com/straight-shoota/crinja) - An implementation of the [Jinja2 template engine](http://jinja.pocoo.org/)
|
||
* [crustache](https://github.com/MakeNowJust/crustache) - [{{Mustache}}](https://mustache.github.io) for Crystal
|
||
* [ECR (Embedded Crystal)](https://crystal-lang.org/api/ECR.html) - compile time template language which uses plain crystal expressions (Crystal stdlib)
|
||
* [Jbuilder](https://github.com/shootingfly/jbuilder) - Generate JSON objects with a Builder-style DSL, inspired by jbuilder
|
||
* [Kilt](https://github.com/jeromegn/kilt) - Abstraction layer for template engines
|
||
* [Slang](https://github.com/jeromegn/slang) - Lightweight, terse, templating language inspired by Ruby's Slim
|
||
* [teeplate](https://github.com/mosop/teeplate) - A library for rendering multiple template files
|
||
|
||
## Testing
|
||
* [Athena Spec](https://github.com/athena-framework/spec) - Common/helpful [Spec](https://crystal-lang.org/api/Spec.html) compliant testing utilities
|
||
* [crotest](https://github.com/emancu/crotest) - A tiny and simple test framework
|
||
* [crytic](https://github.com/hanneskaeufler/crytic) - Mutation testing framework
|
||
* [hashr](https://github.com/crystal-china/hashr) - A tiny class makes test on JSON response easier
|
||
* [LuckyFlow](https://github.com/luckyframework/lucky_flow) - Automated browser tests similar to Capybara
|
||
* [mass-spec](https://github.com/c910335/mass-spec) - Web API testing library
|
||
* [microtest](https://github.com/Ragmaanir/microtest) - Small opinionated testing library focusing on power asserts
|
||
* [minitest.cr](https://github.com/ysbaddaden/minitest.cr) - Library for unit tests and assertions
|
||
* [mocks.cr](https://github.com/waterlink/mocks.cr) - Mocking library for Crystal
|
||
* [Spec](https://crystal-lang.org/api/Spec.html) - spec framework (Crystal stdlib)
|
||
* [spectator](https://gitlab.com/arctic-fox/spectator) - Feature rich spec framework that uses the modern expect syntax
|
||
* [timecop.cr](https://github.com/crystal-community/timecop.cr) - Library for mocking with `Time.now`. Inspired by the [timecop ruby gem](https://github.com/travisjeffery/timecop)
|
||
* [vcr](https://github.com/spoved/vcr.cr) - A HTTP capture and replay implementation for crystal
|
||
* [webdriver_pump](https://github.com/bwilczek/webdriver_pump) - Page Object library. Inspired by Ruby's [WatirPump](https://github.com/bwilczek/watir_pump)
|
||
* [webmock.cr](https://github.com/manastech/webmock.cr) - Library for stubbing `HTTP::Client` requests
|
||
|
||
## Third-party APIs
|
||
* [amazonite](https://github.com/rjnienaber/amazonite) - An unofficial SDK supporting popular AWS APIs
|
||
* [aws-signer.cr](https://github.com/beanieboi/aws-signer.cr) - This library signs your HTTP requests using AWS v4
|
||
* [awscr-s3](https://github.com/taylorfinnell/awscr-s3) - AWS S3 interface
|
||
* [awscr-signer](https://github.com/taylorfinnell/awscr-signer) - Sign HTTP::Request objects and generate presigned post forms
|
||
* [crystal-consul](https://github.com/rogerwelin/crystal-consul) - Consul API client
|
||
* [crystal-darksky](https://github.com/sb89/crystal-darksky) - Wrapper for the [Dark Sky](https://darksky.net) API
|
||
* [crystal-swapi](https://github.com/sb89/crystal-swapi) - Star Wars API (SWAPI) wrapper
|
||
* [crystal_slack](https://github.com/manastech/crystal_slack) - A tool that parses Slack slash commands or send incoming web hooks
|
||
* [GDAX](https://github.com/mccallofthewild/gdax) - GDAX REST and WebSocket API Wrapper with request signing
|
||
* [gitlab.cr](https://github.com/icyleaf/gitlab.cr) - GitLab API wrapper
|
||
* [google](https://github.com/PlaceOS/google) - Google API wrapper
|
||
* [host_meta](https://github.com/toddsundsted/host_meta) - A Web Host Metadata (https://tools.ietf.org/html/rfc6415) client
|
||
* [kube-client.cr](https://github.com/spoved/kube-client.cr) - Kubernetes API Client
|
||
* [mixpanel-crystal](https://github.com/petoem/mixpanel-crystal) - A library for sending events to Mixpanel
|
||
* [mollie.cr](https://github.com/wout/mollie.cr) - [Mollie](https://www.mollie.com/en/) Payments API wrapper (Creditcard, PayPal, Apple Pay, Sofort, Klarna, ...)
|
||
* [office365](https://github.com/PlaceOS/office365) - Microsoft Graph API wrapper
|
||
* [pinboard.cr](https://github.com/oz/pinboard.cr) - [Pinboard](https://pinboard.in) API
|
||
* [raven.cr](https://github.com/sija/raven.cr) - Raven is a client for [Sentry](https://github.com/getsentry/sentry)
|
||
* [stripe.cr](https://github.com/confact/stripe.cr) - Stripe api wrapper
|
||
* [tmdb.cr](https://github.com/mmacia/tmdb.cr) - The Movie DB (TMDb) api wrapper
|
||
* [twitter-crystal](https://github.com/sferik/twitter-crystal) - A library to access the Twitter API
|
||
* [web_finger](https://github.com/toddsundsted/web_finger) - A WebFinger (https://tools.ietf.org/html/rfc7033) client
|
||
* [ynab.cr](https://github.com/jaredsmithse/ynab.cr) - A library to interact with your YNAB data
|
||
|
||
## Validation
|
||
* [accord](https://github.com/neovintage/accord) - Shareable validation library for Crystal Objects
|
||
* [Athena Validator](https://github.com/athena-framework/validator) - Robust & flexible validation framework
|
||
* [validations](https://github.com/vladfaust/validations.cr) - Validations mixin
|
||
* [validator](https://github.com/Nicolab/crystal-validator) - Data check and validation
|
||
|
||
## Web Frameworks
|
||
* [amber](https://github.com/amberframework/amber) - Open source efficient and cohesive web application framework
|
||
* [Athena](https://github.com/athena-framework/athena) - A web framework comprised of reusable, independent components
|
||
* [grip](https://github.com/grip-framework/grip) - The microframework for writing powerful web applications
|
||
* [kemal](https://github.com/kemalcr/kemal) - Lightning Fast, Super Simple web framework. Inspired by Sinatra
|
||
* [lucky](https://github.com/luckyframework/lucky) - Catch bugs early, forget about most performance issues, and spend more time on code instead of debugging and writing tests
|
||
* [marten](https://github.com/martenframework/marten) - A web framework that makes building web applications easy, productive, and fun
|
||
* [runcobo](https://github.com/runcobo/runcobo) - An api framework with simple, intuitive and consistent DSL, using jbuilder to render json
|
||
* [Shivneri](https://github.com/ujjwalguptaofficial/shivneri) - Component based MVC web framework for crystal targeting good code structures, modularity & performance
|
||
* [spider-gazelle](https://github.com/spider-gazelle/spider-gazelle) - A Rails esque web framework with a focus on speed and extensibility
|
||
|
||
# Community
|
||
* [Crystal Forum](https://forum.crystal-lang.org/)
|
||
* [Crystal newsletter](https://crystal-lang.org/#newsletter)
|
||
* [Gitter](https://gitter.im/crystal-lang/crystal)
|
||
* [IRC](ircs://irc.libera.chat:6697#crystal-lang) - #crystal-lang on Libera
|
||
* [Reddit](https://www.reddit.com/r/crystal_programming/)
|
||
* [Stackoverflow](https://stackoverflow.com/tags/crystal-lang/info)
|
||
|
||
## Unofficial
|
||
* [Chinese-speaking Telegram Group](https://t.me/crystal_cn) - 来吧！TG 中文圈的朋友们！
|
||
* [Crystal Programming Discord Server](https://discord.gg/YS7YvQy) - Unofficial Discord server dedicated to the Crystal Programming Language
|
||
* [Portuguese-speaking Telegram Group](https://t.me/crystalbrasil) - Bem vindos ao Crystal Brasil!
|
||
* [Russian-speaking Telegram Group](https://t.me/crystal_ru) - Добро пожаловать, товарищ!
|
||
|
||
# Resources
|
||
* [Crystal for Rubyists](http://www.crystalforrubyists.com/) - Free book to bootstrap your Crystal journey
|
||
* [Crystal Shards for Ruby Gems](https://github.com/crystal-lang/crystal/wiki/Crystal-Shards-for-Ruby-Gems) - A list of Ruby Gems and their Crystal Shards equivalents
|
||
* [crystal-koans](https://github.com/ilmanzo/crystal-koans) - Learn Crystal by writing unit tests
|
||
* [crystal-lang.org](https://crystal-lang.org) - Official language site
|
||
* [devdocs.io](https://devdocs.io/crystal/) - API Documentation Browser with Crystal support
|
||
* [Programming Crystal](https://pragprog.com/book/crystal/programming-crystal) - PragProg book to start your Crystal journey
|
||
|
||
## Official Documentation Translations
|
||
* [br.crystal-lang.org](http://br.crystal-lang.org/) - Brazilian
|
||
* [ja.crystal-lang.org](http://ja.crystal-lang.org/) - Japanese
|
||
* [kr.crystal-lang.org](https://kr.crystal-lang.org/) - Korean
|
||
* [ru.crystal-lang.org](http://ru.crystal-lang.org/) - Russian
|
||
* [tw.crystal-lang.org](http://tw.crystal-lang.org/) - Chinese Traditional
|
||
|
||
# Services and Apps
|
||
* [carc.in](https://carc.in/) - A web service that runs your code and displays the result
|
||
* [Crank](https://github.com/arktisklada/crank) - A Procfile-based application manager (like Foreman)
|
||
* [cry](https://github.com/elorest/cry) - Ability to execute crystal code in a fashion similar to Ruby's pry edit
|
||
* [Crystal [ANN]](https://crystal-ann.com) - Announce new project, blog post, version update or any other Crystal work
|
||
* [DeBot](https://github.com/jhass/DeBot) - IRC bot written in Crystal
|
||
* [icr](https://github.com/crystal-community/icr) - Interactive console for Crystal (like IRB for Ruby)
|
||
* [Invidious](https://github.com/iv-org/invidious) - Invidious is an alternative front-end to YouTube
|
||
* [mpngin](https://github.com/thewalkingtoast/mpngin) - A URL shortener with simple stats
|
||
* [procodile](https://github.com/crystal-china/procodile_cr) - Run processes in the background (and foreground) on Mac & Linux from a Procfile (for production and/or development environments)
|
||
* [quicktype](https://quicktype.io/) - Generate models and serializers from JSON, JSON Schema, GraphQL, and TypeScript
|
||
* [shards.info](http://shards.info/) - Web service that lists all repositories on GitHub that have Crystal code in them. The sources are available on [GitHub](https://github.com/mamantoha/shards-info)
|
||
|
||
# Tools
|
||
* [ast_helper](https://github.com/bcardiff/crystal-ast-helper) - Helper tool to debug parser and formatter
|
||
* [crystal-base](https://github.com/ruivieira/crystal-base) - CentOS base docker image for Crystal development
|
||
* [crystal-dash-docset](https://github.com/Sija/crystal-dash-docset) - [Dash](https://kapeli.com/dash) docset generator
|
||
* [port_ruby_to_crystal](https://github.com/crystal-china/port_ruby_to_crystal) - A regex replace ruby script for port ruby code to crystal easier, reduce friction
|
||
* [public_suffix](https://github.com/toddsundsted/public_suffix) - A small library designed to make the Public Suffix List (https://publicsuffix.org/) easier to use
|
||
|
||
## DevOps
|
||
* [ansible-crystal](https://github.com/CorbanR/ansible-crystal) - Ansible playbook for installing crystal
|
||
* [DPPM](https://github.com/DFabric/dppm) - An easy, universal way to install and manage applications as packages (mostly Linux)
|
||
|
||
## Editor Plugins
|
||
* Acme:
|
||
* [acmecrystal](https://github.com/ilanpillemer/acmecrystal) - Reformats crystal code in acme
|
||
* Atom
|
||
* [crystal-tools](https://atom.io/packages/crystal-tools) - Enables built in tools in Crystal compiler
|
||
* [language-crystal-actual](https://atom.io/packages/language-crystal-actual) - Crystal language support in Atom
|
||
* Emacs
|
||
* [crystal-mode](https://melpa.org/#/crystal-mode) - Crystal language support for Emacs ([crystal-lang-tools/emacs-crystal-mode](https://github.com/crystal-lang-tools/emacs-crystal-mode))
|
||
* Geany
|
||
* [geany-crystal](https://github.com/crystal-lang-tools/geany-crystal) - Crystal support for the [Geany editor](https://www.geany.org/)
|
||
* IntelliJ IDEA
|
||
* [intellij-crystal-lang](https://github.com/asedunov/intellij-crystal-lang) - Crystal support for the JetBrains IDEs
|
||
* Lite-XL
|
||
* [lite-plugin-crystal](https://github.com/Tamnac/lite-plugin-crystal) - Crystal support for the [Lite-XL](https://lite-xl.com/en/) editor
|
||
* Spacemacs
|
||
* [crystal-spacemacs-layer](https://github.com/juanedi/crystal-spacemacs-layer) - Spacemacs contribution layer for Crystal
|
||
* Sublime
|
||
* [sublime-crystal](https://github.com/crystal-lang-tools/sublime-crystal) - Crystal syntax highlighting for sublime Text
|
||
* TextMate
|
||
* [Crystal.tmbundle](https://github.com/crystal-lang-tools/Crystal.tmbundle) - Crystal syntax highlighting, compile, format command, snippets
|
||
* Vim
|
||
* [vim-crystal](https://github.com/vim-crystal/vim-crystal) - Vim filetype support for Crystal
|
||
* [vim-slang](https://github.com/elorest/vim-slang) - Vim filetype support for Slang Templating Engine
|
||
* Visual Studio Code
|
||
* [vscode-crystal-lang](https://github.com/crystal-lang-tools/vscode-crystal-lang) - Formatter, linter and syntax highlighting for `cr` and `ecr` files
|
||
|
||
## LSP Language Server Protocol Implementations
|
||
* [crystalline](https://github.com/elbywan/crystalline) - Crystalline is an implementation of the Language Server Protocol written in and for the Crystal Language
|
||
* [scry](https://github.com/crystal-lang-tools/scry) - Code analysis server for Crystal implementing the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/)
|
||
|
||
## Shell plugins
|
||
* [crun](https://github.com/Val/crun) - Crystal Run : shebang wrapper for Crystal
|
||
* [crystal-zsh](https://github.com/veelenga/crystal-zsh) - .oh-my-zsh plugin
|