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Patterns - The Regex App

By Nikolai Krill

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Patterns is a simple yet powerful tool for working with regular expressions. Build great patterns quickly and effortlessly with syntax coloring, and with matching and replacing occurring in real time.


- Regular expression syntax coloring makes it easy to see how your pattern is interpreted by the regex engine. No more confusion about what needs to be escaped.
- See matches and replacements in real time while you edit your pattern.
- Copy match and replacement code snippets of your pattern for quick use in a number of different programming languages.
- The built-in regular expression reference sheet helps you find the piece of regex syntax you need.

What's New in Version 1.1.2

- Highlighting of matching parentheses for capture groups in regex editor
- Bugfixes and improvements
- Fixes an issue where quotes and dashes are substituted in the text fields
- Support for macOS 10.12 Sierra
- Hover over a match to view the contents of capture groups
- Restoration of app state on quit and relaunch
- Bugfixes


Screenshot 1

Customer Reviews

Enjoyable Way Experiment & Learn

I’ve used regular expressions off and on for the past few decades - they are indispensable for certain tasks, and huge time savers in others. But I don’t use them constantly, which means I often need a quick refresher to get things working just right.
That’s where this nicely crafted app comes in. I find it a quick, and intuitive way to re-familiarize myself with the arcane workings of regex expressions.

My compliments to Nikolai Krill for creating this gem!

Lots of potential, but very aggravating

I got this app to assist with constructing Regex terms. While it holds a lot of promise, there are two critical flaws. 1) There’s no way to save your work. By itself, that’s not a big deal. It becomes a big deal when the app crashes for no apparent reason. I’ve had the thing crash twice in the past 15 minutes after I’m close to getting a term done. If I had hair to pull out, I would. I hope the developer has Crashlytics installed so he/she can fix whatever the problem is.

crash crash crash crash crash crash crash crash crash

what can I say? it crashes all the time.

Patterns - The Regex App
View in Mac App Store
  • $2.99
  • Category: Developer Tools
  • Updated:
  • Version: 1.1.2
  • Size: 1.4 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.6 or later, 64-bit processor

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