This is a simple to use spell check gem that returns back the misspelled words and their common suggestions.

Add this line to your application's Gemfile:

gem 'spelly'

And then execute:

$ bundle

Or install it yourself as:

$ gem install spelly

You can create the Spelly object by calling

# passing in the language dictionary
spelly = Spelly.new("en_US")

A full list of dictionaries can be found here: http://wiki.openoffice.org/wiki/Dictionaries#English_.28AU.2CCA.2CGB.2CNZ.2CUS.2CZA.29

Then you can run your spell check against an array of words by simply calling

> spelly = Spelly.new("en_US")
> words = %w/car bat yardd/
> spelly.spell_check words
=> [{:word=>"yardd", :suggest=>["yards", "yard", "yard d"]}] 

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

Add ability to allow end users to easily upload new dictionary files.