A rails plugin that provides a basic file browser. The primary use case for this plugin is:

  • To manage a directory of files includes subdirectories

  • To integration with products like CKEditor for selecting files.

Guiding Principals:

  • No database required

  • Pluggable backends (filesystem, S3, etc.) - Filesystem only currently

  • Pluggable integration with 3rd party products such as CKEditor

Possible Future Features:

  • Launcher can specify only certain file types to show (images only, only certain extensions, etc.)

  • Allow basic image manipulation (resize, crop, etc.)

  • File upload progress monitoring (for large files)


First, your app needs to be using jQuery as it's JavaScript framework. This dependency might be removed at some future point but it is required for now. In your Gemfile add:

gem 'file_browser'

In an initializer add:

FileBrowser.storages[:local] = Rails.root.join('public/uploaded_files')

Change the above path to be wherever you want to write files. Also make sure that directory is writable by the application.

Finally point your browser to /local/uploaded_files/index and start managing your files via the web.

CKEditor Integration

CKEditor integration is provided out of the box. When configuring CKEditor make sure to provide the following attributes:

filebrowserBrowseUrl: '/local/uploaded_files/select/ck_browser',
filebrowserUploadUrl: '/local/uploaded_files/drop/ck_browser',

This assumes your storage is named “local”, if you name it something else then change the above configuration. Then add “ck_browser” to your asset pipeline.


By default the app will use the “file_browser” layout. Obviously your can override that in your application if you want. If you want it to use the same layout as your main layout simply symlink file_browser.html.erb to your application.html.erb file. If you use your own layout make sure that it includes the jQuery library and that it yields to the symbol :file_browser_footer.

You can have multiple storage repositories that can be registered and accessed. See FileBrowser#storages for more info.


This gem was developed by Eric Anderson ( while developing projects under Red Tusk Studios (