Regex — Regular Expression Tester

Developer: MotionObj

Current Version: 2.2.5

Last Updated: 2 years ago

Download Size: 1.7 MB - Download


Powerful regular expression editor that dynamically highlight matches.

* Automatic generation of regular expression from sample data
* Immediate feedback. Dynamic highlighting of matches as you modify the regular expression or sample text
* Automatic escaping of special characters when copying a regular expression
* Automatic unescaping of special characters when pasting a regular expression
* Supports capture groups
* Supports matching options such as case-insensitive matches
* Supports positive lookahead, negative lookahead
* Supports positive lookbehind, negative lookbehind
* Supports backreferences
* Fast and Dead-simple to use
* Supports State restoration - restart the app to continue where you left off




See the regular expressions tutorial at


Please refrain from sending your bug reports or feature requests using the App Store since we have no way to reply to you. Instead, to ensure a direct response from us, choose the "Email Developer" in the Help menu.

Otherwise, feedback (or praise!) on the app store in the form of ratings/reviews is greatly appreciated.


Release Notes:

* Fix: crash on launch with El Capitan
* Bug fixes


Most Helpful Reviews

Version 1.0
Review by glander1

Great find! - Easy to use and has a super responsive developer. I am using this as a tool to learn regular expressions as I'm new to it. 5 thumbs up!

Found helpful by 2 out of 2 people

More Reviews for Current Version

Version 2.2.5
Review by morriggi

Fast, simple and to the point - This app is awesome and easy to use. It not only does the job well, but helps me learn about regular expressions.

Found helpful by 1 out of 1 people
Version 2.2.5
Review by cirkerekes

Colors are dull, but otherwise a 5 star app - The app wrks fine and I can generate a regexp quickly. Would give 1 more star if the app is prettier.

Found helpful by 1 out of 1 people