Detect CI Environment from environment variables

A normaliser/beautifier for HTML that also understands embedded Ruby.

Jekyll Picture Tag adds responsive images to your Jekyll static site. It automatically creates resized source images, is fully configurable, and covers all use cases, including art direction and resolution switching, with a little YAML configuration and a simple template tag.

Easily setup logical replication and switchover to new database with minimal downtime

A ruby implementation of RFC5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF). The goal of HKDF is to take some source key material and generate suitable cryptographic keys from it.

RubyTree is a Ruby implementation of the generic tree data structure. It provides simple APIs to store named nodes, and to access, modify, and traverse the tree. The data model is node-centric, where nodes in the tree are the primary structural elements. It supports all comm...

Service objects for your application logic

A fake Pusher server for development and testing.

Simple Ruby rate limiting mechanism.

Enumerations for Ruby with some magic powers!

Easy CLI tool for making non-blocking zero downtime schema changes in PostgreSQL

Idempotent operations for Rails apps, built on top of ActiveJob.

An extension for Asciidoctor that converts AsciiDoc documents to EPUB3 e-book format.

Brings Common Table Expressions support to ActiveRecord and makes it super easy to build and chain complex CTE queries

Provides numerous tools for installing, managing and running the Unity game engine from command line.

Simple gem to get city, state, and time zone for a given zip code

Convert japan prefecture code (JIS X 0402 based) into prefecture name.

puma+sinatra+haml webUI + REST API for oxidized

This gem helps you to use the Marketo REST API

An interface for the Cronitor API