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Expressions allows to play with regular expressions*. Just type your pattern and some text to test it. All the changes are updated while you're typing text or pattern. App highlights the syntax, so the pattern is easy-to-read and modify. If you use subexpressions (groups), you can highlight them by pressing cmd+shift+] (or [ – for decreasing the highlighted group number).
If you don't remember the regex syntax, just press cmd+r or click button in the top-right. You will get the reference sheet, so you don't have to remember everything.
The user interface is very minimalistic and non-distractive. By default the color is the same as your menubar, but you can always switch to dark or light mode (see: Preferences). You can also open app in beautiful full screen mode which is perfect when you want to focus or to demonstrate regular expressions to other people.
* Expressions uses ICU regular expression standard. More information you will find here: https://developer.apple.com/reference/foundation/nsregularexpression
What's New in Version 1.2.2
Fixed compatibility with macOS 10.11
Very helpful learning tool
I’m just starting to learn about regular expressions, and I’m very happy to have such a well-made native app to work with.
Great, minimial regex app
Simple and effective, with tasteful design. I’ve used web-based regex tools for years, but I was really happy to find a native one. Well done!
Not what I hoped for
It’s not the worst app, that’s for sure, but I thought it’d at least be equivalent to RegEx101 (which is a free service online)
- Category: Developer Tools
- Updated: Feb 10, 2017
- Version: 1.2.2
- Size: 3.2 MB
- Language: English
- Seller: Apptorium
- © 2016-2017 Apptorium
Compatibility: OS X 10.11 or later, 64-bit processor