Serve is a small Rack-based web server that makes it easy to serve ERB or HAML from any directory. Serve is an ideal tool for building HTML prototypes of Rails applications. Serve can also handle SASS, Textile, and Markdown if the appropriate gems are installed.

Squib is a Ruby DSL for prototyping card games

ActiveRecord::JSONValidator makes it easy to validate JSON attributes with a JSON schema.

Bring your own LUA scripts into redis.

An object model for CloudFormation templates

Useful to make forms and validations. It uses MaxMind database.

Codesake::Dawn is a security source code scanner for ruby powered code. Starting from January 07, 2015 this gem is renamed to dawnscanner and this version is no longer supported. Please, upgrade your Gemfile.

library for interfacing with systemd D-Bus APIs

Add a badge overlay to your app icon

Integration tests for GitLab

Hanami command line

This gem allows you to easily use [Hashids](http://hashids.org/ruby/) in your Rails app. Instead of your models using sequential numbers like 1, 2, 3, they will instead have unique short hashes like "yLA6m0oM", "5bAyD0LO", and "wz3MZ49l". The database will still use integers under the hood, so this gem can be added or removed at any time.

CLI Haste Client

Measure following file dimensions: apng, avif, bmp, cur, emf, gif, heic, heif, ico, j2c, jp2, jpeg, jpx, mng, pam, pbm, pcx, pgm, png, ppm, psd, svg, swf, tiff, webp, xbm, xpm

ISO8601 is a simple implementation in Ruby of the ISO 8601 (Data elements and interchange formats - Information interchange - Representation of dates and times) standard.

A Material Theme for Jekyll

Kintsugi resolves conflicts in .pbxproj files, with the aim to resolve 99.9% of the conflicts automatically.

This is an OmniAuth provider for Atlassian Crowd's REST API. It allows you to easily integrate your Rack application in with Atlassian Crowd.

A type information generator, merger and parser for Sorbet and Ruby 3/Steep

Ruby wrapper for the Pivotal Tracker API