Regular Expressions Helper icon

App Specs
File size:
1.24 MB
April 22, 2011
January 9, 2013

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Forgotten the syntax for a regexp? Just start typing, and this app will visually show the match/replacements as you type.

Don't know the syntax? Popup detailed help chart / cheatsheet with all the regexp you need.

Fast and simple: copy/paste text into the top box, type in a regular expression, and replace (or remove) all matches. Then copy/paste the results from the bottom box

What's New
  • "Replace-as-you-type": all regexp matching is now interactive, realtime
  • "Regexp Cheat Sheet": list of all regexp features and syntax (design and contents courtesy of Dave Child)
  • Large speed increase in the regexp matching
  • Many small bugfixes

  • Regular Expressions Helper ( is a Mac software application that has been discovered and submitted by users of

    Operating System: Mac

    Default Install Path: /Applications/Regular Expressions

    Minimum OS version: 10.6