Crystal

debug.crSija/debug.cr

A Crystal macro for puts-style debugging with colorized output, context, and type information.

wasmer-crystalnaqvis/wasmer-crystal

A complete and mature WebAssembly runtime for the Crystal programming language, enabling safe and fast execution of Wasm modules.

cr-dotenvgdotdesign/cr-dotenv

A Crystal shard for loading environment variables from .env files into your application.

samimdrasil/sam.cr

A Rake-like task manager for Crystal projects that uses plain Crystal code to define and execute tasks.

celestinecelestinecr/celestine

A Crystal library and DSL for creating SVG graphics and animations.

crzdhruvrajvanshi/crz

A functional programming library for Crystal providing monads, algebraic data types, pattern matching, and do-notation.

awscr-s3taylorfinnell/awscr-s3

A Crystal shard providing a comprehensive client library for Amazon S3 and S3-compatible object storage services.

await_asyncanykeyh/await_async

Adds await and async keywords to Crystal for concurrent execution, improving performance in IO-bound applications.

crustacheMakeNowJust/crustache

A Crystal implementation of Mustache logic-less templates, compliant with the Mustache spec v1.1.2+λ.

crystal-fannNeuraLegion/crystal-fann

Crystal language bindings for the FANN (Fast Artificial Neural Network) C library.

carbonluckyframework/carbon

A testable, adapter-based email library for Crystal with built-in bug catching and multiple service adapters.

libgenolbat/libgen

Automatic C-bindings generator for Crystal, using config files to define and regenerate bindings for large C libraries.

blueprintgunbolt/blueprint

A Crystal library for writing reusable and testable HTML, SVG, and form templates in plain Crystal code.

habitatluckyframework/habitat

A Crystal shard for easily configuring settings with validation, examples, and temporary overrides.

shrine.crjetrockets/shrine.cr

A toolkit for handling file attachments in Crystal applications, inspired by Shrine for Ruby.

cryomongoelbywan/cryomongo

A high-performance MongoDB driver written in pure Crystal with no C dependencies.

exercism-crystalexercism/crystal

A collection of Crystal programming language exercises for the Exercism learning platform.

crystal-imguioprypin/crystal-imgui

Crystal bindings for Dear ImGui, enabling immediate-mode GUI development in Crystal.

Iugrkek/iu

A Crystal UI framework built on LibUI with reusable components and cross-platform support.

schedule.crhugoabonizio/schedule.cr

A Crystal shard providing a clear DSL for writing periodic or scheduled tasks with flow control and exception handling.

hardwarecrystal-community/hardware

A Crystal library for retrieving CPU, memory, and network information from the operating system and its processes.

http-protectionrogeriozambon/http-protection

A Crystal HTTP middleware library that protects web applications against common attacks like XSS, clickjacking, and DoS.

Plutophenopolis/pluto

A fast and convenient image processing library for the Crystal language.

amqp-client.crcloudamqp/amqp-client.cr

A high-performance AMQP 0-9-1 client library for the Crystal programming language.

TelegramBothangyas/TelegramBot

A deprecated Crystal wrapper for the Telegram Bot API with command handling, webhooks, and user filtering.

cakeaxvm/cake

A powerful and flexible Make-like utility tool for defining and running tasks using plain Crystal code.

Exception Pagecrystal-loot/exception_page

A library for displaying detailed, customizable exception pages in Crystal web applications to aid debugging.

cltkziprandom/cltk

A Crystal port of the Ruby Language Toolkit for creating programming languages with lexer and parser generators.

totemicyleaf/totem

A Crystal configuration library that loads and parses JSON, YAML, and dotenv formats with support for environment variables and remote key-value stores.

simple_rpckostya/simple_rpc

A reliable and fast RPC server and client for Crystal implementing the msgpack-rpc protocol.

crytichanneskaeufler/crytic

A mutation testing framework for the Crystal programming language that modifies code to evaluate test suite effectiveness.

lua.crveelenga/lua.cr

Crystal bindings to Lua, enabling seamless interoperability between Crystal and Lua 5.4+.

CrOTPphilnash/crotp

A Crystal library for generating HOTP and TOTP codes for two-factor authentication.

toml.crcrystal-community/toml.cr

A TOML parser for Crystal, compliant with the TOML v0.5.0 specification.

kemal-sessionkemalcr/kemal-session

A session management library for Kemal web applications in Crystal, supporting multiple storage engines and built-in CSRF protection.

tallboyepoch/tallboy

A declarative DSL for generating Unicode, ASCII, and Markdown tables in Crystal command-line applications.