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


By MotionObj

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Regular expression testing tool that is easy to use.


* 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


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.

What's New in Version 2.0.1

* Fix a crash when running in OS X 10.9.x

Version 2.0

* With 2.0, the app has a brand new, cleaner look!
* Added support for positive/negative lookaheads
* Added support for positive/negative lookbehinds
* Added support for backreferences
* Tutorial in app for regular expressions has been updated (under Help > A Tutorial for Regular Expressions)

If you like the app, please help to write a review in the app store. This helps keeps the app relevant and for us to continue working on it. Thanks!


Screenshot 1
View in Mac App Store
  • $6.99
  • Category: Developer Tools
  • Updated:
  • Version: 2.0.1
  • Size: 1.2 MB
  • Language: English
  • Seller:

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

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