FeedValidator Build Status Gem Version

FeedValidator is an interface to the W3C Feed Validation online service, based on its SOAP 1.2 support.

It helps to find errors in RSS or ATOM feeds.

FeedValidator add a new assertion (assert_valid_feed) which you can use in Rails applications. This assertion implements a cache to improve the performance of the tests and to not abuse of the W3C Feed Validation online service


Add this line to your application's Gemfile:

gem 'feed_validator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install feed_validator


  • For use FeedValidator just do this:

    require 'feed_validator'
    v = W3C::FeedValidator.new()
    puts v.to_s unless v.valid?
  • In Rails you can use it in your functional tests, just modify your /test/test_helper.rb adding this line:

    require 'feed_validator/assertions'

And now you can use in your functional test, in this way:

def test_bar_valid_feed
  get :bar

Or use the class-level method to quickly create validation tests for a bunch of actions at once:

assert_valid_feed :bar, :foo


Documentation can be found at


FeedValidator is released under the MIT license.