This gem makes Rails console sessions less dangerous in specified environments by warning, color-coding, auto-sandboxing, and allowing read-only external connections (disables job queueing, non-GET requests, etc.)

MySQL adapter for thoughtbot/scenic

Rails way to harness the power of SQL "EXISTS" statement

Simple gem that extends Rails `request.remote_ip` to default to Cloudflare's `HTTP_CF_CONNECTING_IP` header.

UI interface for rails-settings-cached in active admin

Monitor your jobs

It is the library to reconnect automatically when ActiveRecord is disconnected from MySQL.

Easy Parallel Executing using Celluloid

gem for adding DKIM signatures to email messages

Fluentd filter output plugin to anonymize records with HMAC of MD5/SHA1/SHA256/SHA384/SHA512 algorithms. This data masking plugin protects privacy data such as UserID, Email, Phone number, IPv4/IPv6 address and so on.

Automatic detecting missing I18n translations tool.

A basic Mandrill delivery method for Rails.

Store nested hashes and other types in ActiveRecord hstores

Improve perceived performance of your rails application with minimum effort

Easily write arbitrary filters

Debugging toolbar for Rack applications implemented as middleware. Based on logical-insight and rack-bug.

A Rails engine that adds a piece of middleware to the top of your middleware stack that looks for redirect rules stored in your database and redirects you accordingly.

A nifty service layer for your Rails app

It makes working with pure SQL easier with syntax highlighting. Let's you clean your Ruby code from SQL strings.

Manage delta indexes via Delayed Job for Thinking Sphinx