Kroman is ultimate Korean hangul romanization tool. It has a lot of implementations.
This is the ruby gem.
Add this line to your application's Gemfile:
gem 'kroman-gem'
And then execute:
$ bundle
Or install it yourself as:
$ gem install kroman-gem
Kroman.parse(희망은
=> heui-mang-eun
Kroman.let_me_sing!(손목시계)
=> son-mog-si-gye
Bug reports and pull requests are welcome on Github at https://github.com/cheunghy/kroman-gem.
Kroman is available as open source under the terms of the MIT License.