Implementation of the Observer pattern

observable alternatives and similar shards

Based on the "Misc" category

• guardian

  9.7 2.7 observable VS guardian

  File change watcher for Crystal and Non-Crystal libs

• sentry

  9.6 2.6 observable VS sentry

  Watches src files, rebuilds/reruns application on file changes

• hoop

  9.5 0.0 observable VS hoop

  Building native OSX apps

• immutable

  9.4 2.9 observable VS immutable

  Implementation of thread-safe, persistent, immutable collections

• neph

  9.3 7.7 observable VS neph

  A modern command line job processor that can execute jobs concurrently

• crystagiri

  8.8 5.1 observable VS crystagiri

  An Html Reader / parser like Nokogiri Ruby gem

• stumpy_png

  8.6 2.6 observable VS stumpy_png

  Read and write PNG images

• tren

  8.6 0.0 observable VS tren

  Give your SQL some love

• cltk

  8.1 1.7 observable VS cltk

  A crystal port of the Ruby Language Toolkit

• html_builder

  8.1 0.9 observable VS html_builder

  DSL for creating HTML

• crz

  7.9 1.4 observable VS crz

  Functional programming library

• crystal-futures

  7.4 0.0 observable VS crystal-futures

  Future type implementation

• kreal

  7.4 0.0 observable VS kreal

  Model sharing & RPC library built on and works with Kemal seamlessly

• raytracer-crystal

  6.9 1.7 observable VS raytracer-crystal

  CPU Raytracer with examples

• aasm.cr

  6.7 0.0 observable VS aasm.cr

  Easy to use finite state machine for Crystal classes

• lambda.cr

  6.6 0.0 observable VS lambda.cr

  Uniformed function call syntax

• emoji.cr

  6.6 4.5 observable VS emoji.cr

  Emoji library

• inflector.cr

  6.6 0.0 observable VS inflector.cr

  Singularize, pluralize, camelize, etc (port from ActiveSupport)

• crystal-diff

  6.5 4.6 observable VS crystal-diff

  A Crystal sequence differencing implementation

• promise

  6.4 0.0 observable VS promise

  A Promise Implementation

• cron_scheduler

  6.4 0.0 observable VS cron_scheduler

  Job scheduler with crontab patterns

• chalk-box

  6.3 0.0 observable VS chalk-box

  Terminal color toolbox, check support and colorized (without String monkey patch)

• denetmen

  6.2 0.0 observable VS denetmen

  Useful micro validator / check library

• accord

  6.2 2.0 observable VS accord

  Sharable validations for Crystal objects

• evented

  6.0 0.0 observable VS evented

  A micro library to publish and subscribe for Crystal objects

• statsd.cr

  5.9 0.1 observable VS statsd.cr

  Statsd client library

• lirith

  5.8 0.0 observable VS lirith

  Graphics engine

• monads

  5.7 7.7 observable VS monads

  Monad implementation

• pinger

  5.4 3.6 observable VS pinger

  Ping IP addresses and DNS entries without requiring sudo

• ulid

  5.2 0.0 observable VS ulid

  Universally Unique Lexicographically Sortable Identifier (ULID)

• circuit_breaker

  5.2 0.6 observable VS circuit_breaker

  Implementation of the circuit breaker pattern

• crystal-binary_parser

  5.2 1.2 observable VS crystal-binary_parser

  Binary parser

• moola

  5.0 1.4 observable VS moola

  Library for dealing with money and conversion (inspired by RubyMoney)

• any_hash.cr

  4.9 0.7 observable VS any_hash.cr

  Recursive Hash with better JSON::Any included

• syscall.cr

  4.9 0.0 observable VS syscall.cr

  Raw syscall interface

• wikicr

  4.6 1.3 observable VS wikicr

  Wiki using git to manage revisions

• stumpy_gif

  4.3 0.0 observable VS stumpy_gif

  Write (animated) GIF images

• acorn

  4.3 0.0 observable VS acorn

  State Machine Compiler for Crystal

• i18n.cr

  4.0 4.2 observable VS i18n.cr

  Internationalization shard

• crystal-i18n

  3.9 0.0 observable VS crystal-i18n

  Internationalization library

• daemonize.cr

  3.7 0.0 observable VS daemonize.cr

  Crystal process daemonizer

• ms

  3.7 0.0 observable VS ms

  Library to easily convert various time formats to milliseconds and milliseconds to human readable format

• atomic_write.cr

  3.7 4.5 observable VS atomic_write.cr

  Library for writing or apppending files atomically

• wire

  3.6 0.0 observable VS wire

  A packet analyzer

• turkish-number

  3.5 0.0 observable VS turkish-number

  Turn integers into the Turkish words

• hq.cr

  3.3 0.0 observable VS hq.cr

  Simple wrapper for crystal-xml

• shell.cr

  3.3 0.0 observable VS shell.cr

  Small simplistic helper class for executing shell commands

• crdoc

  3.3 0.0 observable VS crdoc

  CLI tool to search and open documentation

• m3u8

  2.7 1.2 observable VS m3u8

  Generate and parse m3u8 playlists for HTTP Live Streaming

• haikunator

  2.6 0.0 observable VS haikunator

  Heroku-like random name generator

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