Add a thumbnail preview to the MediaElement.js player.

Convert mermaid ER diagram to a migration file

MessageQuickly includes a mountable engine to process webhooks, and an API wrapper to talk to Facebook.

Rails 4 & 5 Engine providing private and public messaging for any object, such as Users or Groups

Service Metadata Presenter for the MoJ Forms product

Metafy is a Gem for Rails 3 that makes it possible to easily add dynamic attributes to any ActiveRecord model. These lightweight, meta attributes work just like normal database column attributes on your ActiveRecord model and are fully searchable (i.e. you can find records by values contained in ...

It is a very simple Rails plugin to help you customize your pages' meta tags a little bit easier.

Rails meta tags helpers

DB-Configurable type description. Uses hstore on the models. A demo app is running at http://meta-types.herokuapp.com

Metova libraries for Ruby on Rails

Metricky

Metricky

metrics-graphics for the Rails Assets Pipeline

Mi is a generator of migration file instead of `rails generate migration`.

Middle Management hires and fires your delayed_job workers automatically so that you get all of your work done quickly for as little money as possible.

Tiny gem open to migration after it's generated throught rails generate migration ...

Facebook, Twitter and Instagram integration for Ruby on Rails

MiniBacktrace allows you to take advantage of the Rails.backtrace_cleaner when using MiniTest. This includes everyone using Rails 3 with Ruby 1.9.

Compile your javascript into minispade modules using the asset pipeline

MissionKontrol is a simple and effective admin interface for your applications or microservices. You can find out more at: https://MissionKontrol.io