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.
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
Multi String Replacer - Replace multiple strings at once!
SMF – Search my Files - SMF - Search my Files v13 is the fastest duplicate files finder and a multi-dimensional - file searcher, - file copier / mover, - file deleter / eraser, - and
regexxer - regexxer is a nifty GUI search/replace tool featuring Perl-style regular expressions.
Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.