A collaborative list of awesome Swift libraries and resources. Feel free to contribute!

Rack middleware for blocking & throttling

Ruby ♥︎ JavaScript

Annotate Rails classes with schema and routes info

A fully configurable and extendable Git hook manager

[DISCONTINUED ] Attributes on Steroids for Plain Old Ruby Objects

Simple Rails app configuration

Ruby: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber

A gem providing "time travel", "time freezing", and "time acceleration" capabilities, making it simple to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and Da…

Animation of the SHA-256 hash function in your terminal.

Rails Composer. The Rails generator on steroids for starter apps.

Hashie is a collection of classes and mixins that make Ruby hashes more powerful.

acts_as_paranoid for Rails 5, 6 and 7

Rails application preloader

Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.

A platform for developing apps using JRuby on Android.

A rich Ruby API and DSL for the Elasticsearch search engine

Faker refactored.

Experiment Driven Development for Ruby

Contracts for Ruby.

Natural language processing framework for Ruby.

Code quality threshold checking as part of your build

Speeds up your Rails 3 assets:precompile by only recompiling changed files, and only compiling once to generate all assets

PJAX integration for Rails

Upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates functions (UDF) for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

Shard your builds for fun and profit

no more `bundle exec ...`

RSpec matchers and macros for Mongoid.

Bringing Ruby to Rails · Rails bindings for Opal

Docile keeps your Ruby DSLs tame and well-behaved