i18n-tasks helps you find and manage missing and unused translations. It analyses code statically for key usages, such as `I18n.t('some.key')`, in order to report keys that are missing or unused, pre-fill missing keys (optionally from Google Translate), and remove unused keys.

Replace plain text strings in your slim templates and Rails controllers with calls to I18n t() method. Keys and YAML output files will be automatically generated and filled in.