This gem allows you to store mail templates in the database.

library to cache (memoize) method return values in database

Standalone migrator for non Rails projects

Mule is a database migration tool based on a stand-alone version of Rails Migrations. By default, Mule uses SQL scripts instead of Migrations DSL, so no Ruby coding is required. It supports multi-database environments, including support for existing databases.

Never put database in public because it's not as secure as SSH. Connect to DB via SSH for one-time uses.

It generate the domain of Domain Driven Design.

Swagger Docs, a gem which contains the SwaggerUI assets

Deadfire - lightweight css preprocessor

Helper methods for Ruby on Rails application debugging.

This is client library for Deezer API. Music webapp at www.deezer.com.

Dry up your controllers

OpenTracing instrumentation for Delayed::Job

Delete/destroy associated ActiveRecord records in the background with ease.

Dentists pull things carefully?

Execute your ActiveRecord migrations with Percona's pt-online-schema-change. Formerly known as Percona Migrator.

Derail is a collection of helpers and libraries which I use in \ almost every project, and a generator to get started quickly.

Rails test server for external tests.

Resize images, lower quality to save bytes, rotate, crop, convert between formats, and anything else that the image_processing gem supports.

A stack of light-weight responders tailored to JSON APIs

"Logger info with rails"