Regex101 Chrome Extension is described as 'Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, Go, JavaScript, Java' and is an app. There are more than 25 alternatives to Regex101 Chrome Extension for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best Regex101 Chrome Extension alternative is regular expressions 101, which is free. Other great apps like Regex101 Chrome Extension are RegExr, Expresso, RegexMate and Wildcard.
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Easily test your regular expressions against a sample body of text in a native UWP app designed for Windows 10. Just type your regex and it instantly begins matching as you type. Any capture groups are automatically highlighted, and the app works completely offline.
Regexp testing tool allows to apply group of regexps to huge arrays of data (millions or so) in order to investigate search or search/replacement possibilities of regexp group.
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