RailsAdmin is a Rails engine that provides an easy-to-use interface for managing your data
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RailsAdmin is a Rails engine that provides an easy-to-use interface for managing your data.


Support for ActiveModel::MassAssignmentSecurity has been dropped

RailsAdmin no longer controls field visibility regarding attr_accessible status, nor uses role on mass assignment. See discussion here.

Richtext editor DSL(for CKEditor, CodeMirror, bootstrap-wysihtml5) has been changed

They are configured by field type, not through Text field's extra options. For detail, see CKEditor, CodeMirror, Wysihtml5 in Wiki.

[Action required] Security issue

RailsAdmin::Config::Fields::Types::Serialized#parse_input was unsafe, because it was using the infamous YAML#load.

To fix this, RailsAdmin now uses safe_yaml, with enable_arbitrary_object_deserialization and suppress_warnings on, for maximum compatibity with all existing apps.

Incidentally, if you want to safely load YAML in your own app, you can use YAML.load(something, safe: true), since RailsAdmin does not force safe load by default (you might be parsing objects in YAML coming from a safe source).

If you use Serialized with RailsAdmin with non-totally-trusted users, your server is at risk. Update your gem to > 0.4.3 (should be released any time soon) or to at least this patched commit if you use master~HEAD

Rails3.0 and other non-maintained branches may be at risk too, I strongly advise against using those any longer.

More information about the whole drama here.


  • Display database tables
  • Create new data
  • Easily update data
  • Safely delete data
  • Custom actions
  • Automatic form validation
  • Search and filtering
  • Export data to CSV/JSON/XML
  • Authentication (via Devise)
  • Authorization (via Cancan)
  • User action history (internally or via PaperTrail)
  • Supported ORMs
    • ActiveRecord
    • Mongoid [new]


Take RailsAdmin for a test drive with sample data. (Source code.)


In your Gemfile, add the following dependencies:

gem 'fastercsv' # Only required on Ruby 1.8 and below
gem 'rails_admin'


bundle install

And then run:

rails g rails_admin:install

This generator will install RailsAdmin and Devise if you don't already have it installed. Devise is strongly recommended to protect your data from anonymous users. Note: If you do not already have Devise installed, make sure you remove the registerable module from the generated user model.

It will modify your config/routes.rb, adding:

mount RailsAdmin::Engine => '/admin', :as => 'rails_admin' # Feel free to change '/admin' to any namespace you need.

Note: The devise_for route must be placed before the mounted engine. The following will generate infinite redirects.

mount RailsAdmin::Engine => '/admin', :as => 'rails_admin'
devise_for :admins

This will resolve the infinite redirect error:

devise_for :admins
mount RailsAdmin::Engine => '/rails_admin', :as => 'rails_admin'

See #715 for more details.

It will also add an intializer that will help you getting started. (head for config/initializers/rails_admin.rb)

Finally run:

bundle exec rake db:migrate

Optionally, you may wish to set up Cancan, PaperTrail, CKeditor, CodeMirror

More on that in the Wiki


Start the server:

rails server

You should now be able to administer your site at http://localhost:3000/admin.


All configuration documentation has moved to the wiki: https://github.com/sferik/rails_admin/wiki


Dashboard view Delete view List view Nested view Polymorphic edit view


If you have a question, please check this README, the wiki, and the list of known issues.

If you still have a question, you can ask the official RailsAdmin mailing list.

If you think you found a bug in RailsAdmin, you can submit an issue.

Supported Ruby Versions

This library aims to support and is tested against the following Ruby implementations: