RegEx Lab: Regular Expressions 4+

Test regular expressions


    • £0.89


RegEx Lab - test regular expressions

• Highlighting of regex syntax and of matches and capture groups.
• Results List View which lists all the matches and capture groups.
• Replace feature
• Dark theme (by default) based on the Solarized color palette
• Themes to choose from (light/dark)
• A handy cheatsheet which tells you about the different operators, option flags and metacharacters.
• An extra row of keyboard keys for common special characters
• Undo / Redo quick access buttons
• Support for Dynamic Type (iOS Settings Text Size)
• Works perfectly with iPad OS Multitasking - in Split View or as a Slide Over app.
• Export / Import feature

Questions, suggestions, issues?

Made by Nikolay Suvandzhiev

What’s New

Version 1.15.0

• The export / import feature now also includes the "replacement text" if there is any

Ratings and Reviews

BerkscubII ,

I get REGEX now thanks to this amazing app!

I have struggled for quite some time to get my head around regex and actually get it working to identify and capture key data from long bodies of texts such as e-mails.
The clean simplicity of this app plus some good tutorial resources meant I have got it working with an integrated automation and I understand it so much better. THANK YOU!

Developer Response ,

Thanks for your review!

disappointed of Holborn! ,

Share feature brilliant

The new share feature is ideal and as promised I’ve given the RegEx app five stars

Thanks for your consideration and work done

Developer Response ,

The "Share" feature has now been added (app version 1.9.0). It's under the top-right "more options" menu (three vertical dots). Thanks for the suggestion, hope it works well for you, let me know otherwise or if you have any other questions or queries - at

Thank you for using the app and for your review. Regarding a share option, I assume something a bit more comprehensive than simply sharing the regex text (which can be done via usual copy / paste)? If you mean the ability to share a particular regex but also the test text and the substitution pattern - there's the Export / Import option, which can achieve this. Perhaps you would like something that generates a link, and if you share this link with someone, they can then tap it and it would open the app and add the regex to their list? I"d be happy to discuss this further: . Thank you.

iandol ,

Excellent regex tool

I've trialled many iOS regex tool and this one has the best balance of features and elegant user interface. Really good work thank you!

Developer Response ,

Thanks for using the app and for your review!

App Privacy

The developer, sovio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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