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.
HSHTG - Generate, manage, save and edit hashtags just in a few finger tap
Doxillion - Download fast and easy to use document file converter for PC or Mac. Convert Word, Doc, Docx, PDF, WPS, ODT, TXT, RTF, WPD, HTML, XML, word perfect and more source code file types. Freeware for home use.
HashtagWiki.com - Hashtag Generator Tool
regexxer - regexxer is a nifty GUI search/replace tool featuring Perl-style regular expressions.
Hashtagify.me - Free hashtags search engine, with paid advanced analytics