version_fu helps version your ActiveRecord models. It is based on Rick Olson's acts_as_versioned and is compatible with Rails 3.

MetaWhere offers the ability to call any Arel predicate methods (with a few convenient aliases) on your Model's attributes instead of the ones normally offered by ActiveRecord's hash parameters. It also adds convenient syntax for order clauses, smarter mapping of nested hash conditions, and a debug_sql method to see the real SQL your code is generating without running it against the database. If you like the new AR 3.0 query interface, you'll love it with MetaWhere.

RJB is a bridge program that connect between Ruby and Java with Java Native Interface.

A drop-in Jekyll Plugin that provides an asset pipeline for JavaScript, CSS, SASS, SCSS. Based around Sprockets (from Rails) and just as powereful it provides everything you need to manage assets in Jekyll.

A Ruby API and configuration helper for the Sphinx search service.

A sophisticated process manager for applications running on Linux & macOS.

Capybara is an integration testing tool for rack based web applications. It simulates how a user would interact with a website

jQuery UI's JavaScript, CSS, and image files packaged for the Rails 3.1+ asset pipeline

Rails for zurb foundation CSS framework. Form builder, flash message, ...

Add file 'tail' implemented with EventMachine. Also includes a 'glob watch' class for watching a directory pattern for new matches, like /var/log/*.log

Isn't it awesome how `optparse` and other option parsers generate help and usage-messages based on your code?! Hell no! You know what's awesome? It's when the option parser *is* generated based on the help and usage-message that you write in a docstring! That's what docopt does!

Makes Rails real time through websockets as a gem in the backend and as an Angular library in the front end.

try an android library directly from the command line

THIS GEM IS NOW DEPRECATED - Please migrate to https://rubygems.org/gems/structXcodegen comes in two parts - a file watcher that auto-generates a project based on a simple project specification written in YAML or JSON, and options to assist in adding new files and targets to your dynamic project.

A Test Kitchen Verifier for InSpec

Turkee will help you to easily create usability studies, post HITs, and retrieve the user entered values from Mechanical Turk.

Byebug is a Ruby debugger. It's implemented using the TracePoint C API for execution control and the Debug Inspector C API for call stack navigation. The core component provides support that front-ends can build on. It provides breakpoint handling and bindings for stack frames among other things and it comes with an easy to use command line interface.

小説家になろうで公開されている小説の管理、及び電子書籍データへの変換を支援します。縦書用に特化されており、横書き用に特化されたWEB小説を違和感なく縦書で読むことが出来るようになります。

Helpers for making new Huginn Agents

Common framework to build command line interfaces with Ruby

The official appsignal.com gem

A framework for creating themes and plugins for Jekyll sites

The internationalizer. Replaces plain text strings in your views and replaces them with I18n message strings so you only have to provide the translations.

Doorkeeper is an OAuth 2 provider for Rails.

Provides support for dependency resolution

RubiGen - Ruby Generator Framework

Convert the Xcode plist log to a JUnit report

Easy collecting your Rails apps metrics

A minimal finite state machine with a straightforward syntax. You can quickly model states, add callbacks and use object-oriented techniques to integrate with ORMs.

Hooks into will_paginate to format the html to match Twitter Bootstrap styling. Extension code was originally written by Isaac Bowen (https://gist.github.com/1182136).

An UI library for WeChat, includes widgets/modules in mobile web app.

Kill unicorn workers by memory and request counts

Translations for the devise gem

Jekyll Minifier using htmlcompressor for html, uglifier for js and css

Kuroko2 is a web-based job scheduler/workflow manager created at Cookpad Inc.

A gem for generating embeddable HTML previews from URLs.

Rails observer (removed from core in Rails 4.0)

An adapter for using Mailgun with Rails and Action Mailer

Provides a mechanism for passing content up to the layout, like Rails' content_for

Easy-to-use anomaly detection

AdminLTE is a premium Bootstrap theme for Backend.

A Vagrant plugin that creates a persistent storage and attaches it to guest machine.

Module to define equality, equivalence and inspection methods

A Rails plugin to OAuth v2.0 enable your rails application. This plugin implements v09 of the OAuth2 draft spec http://tools.ietf.org/html/draft-ietf-oauth-v2-09.

This gem provides simple request logging for Grape with just few lines of code you have to put in your project! In return you will get response codes, paths, parameters and more!

Use the provided DSL to describe and test API operations in your spec files. Then, you can easily generate corresponding swagger.json files and serve them up with an embedded version of swagger-ui. Best of all, it requires minimal coding and maintenance, allowing you to focus on building an awesome API!

Interactor provides a common interface for performing complex user interactions.

Linearly scale Heroku dyno counts based on sampled metrics

An abstract OAuth2 strategy for OmniAuth.

Multiple worksheets can be added to a workbook and formatting can be applied to cells. Text, numbers, formulas, hyperlinks and images can be written to the cells.

["Michael Bryzek"]

Compare cryptocurrency trading data across multiple exchanges and blockchains.

CUI Twitter Client.

A generic command line interface for ruby-debug.

Ruby-Interactive-ruBy -- Yet another interactive Ruby shell Rib is based on the design of [ripl][] and the work of [ripl-rc][], some of the features are also inspired by [pry][]. The aim of Rib is to be fully featured and yet very easy to opt-out or opt-in other features. It shall be simple, lightweight and modular so that everyone could customize Rib. [ripl]: https://github.com/cldwalker/ripl [ripl-rc]: https://github.com/godfat/ripl-rc [pry]: https://github.com/pry/pry

This gem contains Ruby routines for parsing org-mode files.The most significant thing this library does today is convert org-mode files to HTML or textile. Currently, you cannot do much to customize the conversion. The supplied textile conversion is optimized for extracting "content" from the orgfile as opposed to "metadata."

Adds zipcode validation methods to ActiveModel considering different country zipcode formats.

Rails gem for dynamically adding and removing nested has_many association fields in a form. Uses jQuery and supports multiple nesting levels. Requires Ruby 1.9+ and the asset pipeline.

If you are tracking any kind of assets the currencies gem is for you. It contains every currency in the ISO 4217 standard and allows you to add your own as well. So if you decide to take sparkly buttons as a form of payment you can use currencies to display the shiny button unicode symbol ☼ (disclaimer: ☼ may not look like a shiny button to everyone.) when used with something like the money gem. Speaking of the money gem, currencies gives you an ExchangeBank that the money gem can use to convert from one currency to another. There are plans to have ExchangeRate provider plugin system. Right now the rates are either set manually or pulled from Yahoo Finance.

A simple OFX (Open Financial Exchange) parser built on top of Nokogiri. Currently supports OFX 102, 200 and 211. Usage: OFX("sample.ofx") do |ofx| p ofx end

Converts markdown into UNIX manpages and HTML webpages.

tb is a manipulation tool for tables. tb provides a command and a library for manipulating tables: Unix filter like operations (sort, cat, cut, ls, etc.), SQL like operations (join, group, etc.), other table operations (search, gsub, rename, cross, melt, unmelt, etc.), information extractions (git, svn, tar), and more. tb supports various table formats: CSV, TSV, JSON, NDJSON, LTSV, etc.

Connect to Pry remotely using DRb

Import an Excel document by creating a Ruby class and passing in an 'xls' file. It will automatically format the columns into specified Ruby objects and raise errors on bad data.

An unoffical/reverse engineered API for Android market

debugger is a fast implementation of the standard Ruby debugger debug.rb. It is implemented by utilizing a new Ruby C API hook. The core component provides support that front-ends can build on. It provides breakpoint handling, bindings for stack frames among other things.

ZFS admin scripts, such as automatic snapshots, mysql snapshotting, scrubbing, etc.

Rhodes mobile framework

Great Ruby debugging companion: pretty print Ruby objects to visualize their structure. Supports custom object formatting via plugins

A plugin for Jekyll that seamlessly enable emoji.

A vendor independent interface for accessing databases, similar to Perl's DBI

A Chef cookbook for managing Python installations.

ruby-oci8 is a ruby interface for Oracle using OCI8 API. It is available with Oracle 10g or later including Oracle Instant Client.

"A rubygem wrapper of chinese segment tools ICTCLAS2014"

Ships backbone and underscore to your Rails 3.1 application through the new asset pipeline. Rails 3.0 is supported via generators.

libnotify is a library that sends desktop notifications to a notification daemon, as defined in the Desktop Notifications spec. These notifications can be used to inform the user about an event or display some form of information without getting in the user's way.

Truncates html so you don't have to

Adds Dropzone, a great JS File upload by Matias Meno, to the Rails Asset pipeline.

Data anonymization tool for RDBMS and MongoDB databases

An extension to Capistrano to deploy Magento. Adding the specific requirements and additional tasks.

This gem makes it easy to provide a report while your ruby script is executing

We're replacing the original view-layer of Ruby on Rails, the most productive MVC framework we know, with our technology. By introducing basemate we get dynamic, fast and simple user interfaces without the need to touch HTML/HAML/ERB/JS/CSS. Plus, it feels like a single page application, but there's no need for all the API hustle SPAs usually bring with them.

Regexp#examples returns a list of "all" strings that are matched by the regex. Regexp#random_example returns one, random string that matches.

create sub-plugin dynamically per tags, with template configuration and parameters

A gem to help build event-based code in Ruby

Rack-based asset packaging system

Database, browser, realtime ActionCable, Email, SMS, Slack notifications, and more for Rails apps

An enterprise security extension for devise.

Ruby library for Windows Remote Management

Paginate Active Record sets at variable speeds

A HTTP API for LIFX.

Add the ability to use the Google Authenticator with ActiveRecord.

FXRuby is the Ruby binding to the FOX GUI toolkit.

Slim scrooge boosts speed in Rails ActiveRecord Models by only querying the database for what is needed.

RSpec matches for Mongoid models, including association and validation matchers.

A full featured library for working with Microsofts Active Directory in Ruby.

Bh - Bootstrap Helpers

Tenacity provides a database client independent way of specifying simple relationships between models backed by different databases.

pws is a command-line password safe. Please run `pws --help` for usage information.