HSHTG - Generate, manage, save and edit hashtags just in a few finger tap
Batch Docs - Replace text in, add or remove content, and edit thousands of Word documents in doc and docx formats, PDFs, RTF documents, and other text documents.
HashtagWiki.com - Hashtag Generator Tool
Multi String Replacer - Replace multiple strings at once!
Hashtagify.me - Free hashtags search engine, with paid advanced analytics
regexxer - regexxer is a nifty GUI search/replace tool featuring Perl-style regular expressions.