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Jan Goyvaerts runs Just Great Software, where he designs and develops some of the most popular regular expression software, including RegexBuddy, RegexMagic, and PowerGREP. RegexBuddy is the world's only regular expression editor that emulates the peculiarities of 15 regular expression flavors. RegexMagic is the world's only tool for generating regular expressions using powerful patterns instead of the cryptic regex syntax. PowerGREP is the most feature-rich grep tool for Microsoft Windows.