Apropos helps your site serve up the appropriate image for every visitor. Serving multiple versions of an image in responsive and/or localized web sites can be a chore, but Apropos simplifies and automates this task. Instead of manually writing a lot of CSS rules to swap different images, Apropos generates CSS for you based on a simple file naming convention.

Chanko is a Rails extension tool

Analyze code for potentially uncalled / dead methods, now with auto-removal.

A tool for building software packages with fpm.

Simplified command-line administration for Kafka brokers

A framework for creating e-books from Markdown using Ruby. Using the Prince PDF generator, you'll be able to get high quality PDFs. Also supports EPUB, Mobi, Text and HTML generation.

This gem provides a Ruby API to the Nexpose vulnerability management product by Rapid7.

A linter and static code analysis tool for Ruby.

Service objects for your application logic

An object-oriented AST extension for Parser

Ruby wrapper for the BitBucket API supporting OAuth and Basic Authentication

A Ruby client library for the Box V2 Content API.

Library to tail files in Ruby

Glimmer is a Ruby DSL Framework for Ruby GUI and More, consisting of a DSL Engine and a Data-Binding Library (including Observer Design Pattern, Observable Model, Observable Array, and Observable Hash). Used in Glimmer DSL for SWT (JRuby Desktop Development GUI Framework), Glimmer DSL for Web (Ruby in the Browser Web Frontend Framework and Winner of Fukuoka Prefecture Future IT Initiative 2025 Money Forward Award), Glimmer DSL for LibUI (Prerequisite-Free Ruby Desktop Development GUI Library and Winner of Fukuoka Ruby Award Competition 2022 Special Award), Glimmer DSL for Tk (Ruby Tk Desktop Development GUI Library), Glimmer DSL for GTK (Ruby-GNOME Desktop Development GUI Library), Glimmer DSL for FX (FOX Toolkit Ruby Desktop Development GUI Library), Glimmer DSL for WX (wxWidgets Ruby Desktop Development GUI Library), Glimmer DSL for Swing (JRuby Swing Desktop Development GUI Library), Glimmer DSL for JFX (JRuby JavaFX Desktop Development GUI Library), Glimmer DSL for XML (& HTML), and Glimmer DSL for CSS.

Efficient, convenient, non-intrusive JSONAPI framework for Rails.

JSON:API serialization, error handling, filtering and pagination.

Lita adapter for Slack.

Methadone provides a lot of small but useful features for developing a command-line app, including an opinionated bootstrapping process, some helpful cucumber steps, and some classes to bridge logging and output into a simple, unified, 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。

Object to XML Mapping Library, using Nokogiri (fork from John Nunemaker's Happymapper)