Short description of String-O-Matic 15.1: String-O-Matic performs search and replace operations with multiple strings in multiple files. It was designed specifically for computer programmers working on large projects with many source code files, however any type of file can be used, including HTML. Search and replace operations can also be performed on filenames (mass renaming). Case-insensitive, whole-word, wildcards, and command line searches are supported.