RegEx Lab allows you to test regular expressions. The app highlights and underlines text to show matches and capture groups. There's also a handy cheatsheet and a results list view. It has a replace feature too.


RegexMate is described as 'Craft and test regex effortlessly on macOS and iOS with RegexMate. A minimalist UI, live preview, and a comprehensive reference guide enhance usability' and is a regular expression editor in the development category. There are more than 25 alternatives to RegexMate for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best RegexMate alternative is regular expressions 101, which is free. Other great apps like RegexMate are RegExr, Regex Forge, Expresso and Wildcard.
RegEx Lab allows you to test regular expressions. The app highlights and underlines text to show matches and capture groups. There's also a handy cheatsheet and a results list view. It has a replace feature too.


DevUtilHub provides 24+ free online developer tools including regex tester, Base64 encoder/decoder, JWT debugger, JSON formatter, hash generators, and more. All tools run entirely in your browser for maximum privacy and speed. No signup required.

Regexenator is a powerful yet simple regular expression tool for Android phones and tablets. You can use Regexenator to create, test, and evaluate regular expressions and search text for matches of your regular expressions.




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.

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, Go, JavaScript, Java.
