Mac App Store

Mac App Store is the simplest way to find and download apps for your Mac.

To download Regex — Regular Expression Tester from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

Regex — Regular Expression Tester

By MotionObj

Open the Mac App Store to buy and download apps.


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.

What's New in Version 2.2.5

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


Screenshot 1
Screenshot 2
Screenshot 3
Regex — Regular Expression Tester
View in Mac App Store
  • 13,99 €
  • Category: Developer Tools
  • Updated:
  • Version: 2.2.5
  • Size: 1.7 MB
  • Language: English
  • Developer:

Compatibility: OS X 10.9 or later, 64-bit processor

Customer Ratings

0 0 0 We have not received enough ratings to display an average for the current version of this application.