jRegExAnalyser is described as 'Interactive tool written in Java to write, test, debug, analyse and profile regular expressions. Its free and Open Source software, licensed under the terms of GPLv2 with Class Path Exception' and is an app in the development category. There are more than 10 alternatives to jRegExAnalyser for a variety of platforms, including Windows, Mac, Web-based, Linux and iPhone apps. The best jRegExAnalyser alternative is Expresso, which is free. Other great apps like jRegExAnalyser are RegexMate, RegexBuddy, RegExp and Regulex.