Check out the beta for the Hashtag Picker, a small utility to help you get your hashtags together for your social media.
*Add hashtags to a list
*Does not allow duplicate hashtags in list
*Remove hashtags from list
*Generate a given number of hashtags in a string
*Generated hashtags is copied to the clipboard
If you have any problems/issues/feature request you can reach out to me via email or twitter. I will do my best to fix any bugs as quickly as possible and I'll make an attempt to add feature requests.