RegEx Lab: Regular Expressions 4+

Test regular expressions


    • $1.99


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

4.2 out of 5
5 Ratings

5 Ratings

Virgil89 ,

Fantastic tool to have in hand

While I am not a pro using RegEx, I quick test on this App before writing something on my computer. It’s easier and faster rather than run the script every time. And since I (sadly) live with my phone next to me it has just become a fun pass time even if I don’t need to them... By doing (rather than reading the theory) you learn so much more and if you are like me that has just started with RegEx, having an app like this will help you in the process of getting your feet wet! Highly recommended

Developer Response ,

Thank you very much for your review. I am glad to hear that RegEx Lab is helping you to learn about regular expressions (it's a very useful skill to have!). For any suggestions, just let me know (from the app: Settings > Contact Developer).

T_L_G ,

Great, full-featured regex tool

I wanted to test a regex but didn’t want to connect to work to get a Linux window. Downloaded this app and voila. You can write your regex and write your data, both of which you can save, and it highlights the matches or does the replacements. It’s got examples and reference information. Font size is adjustable.

Developer Response ,

Thank you for using the app and for your rating and review!

Branden Bo ,

Great for practicing expressions on the go

I’ve never written a review on the App Store before, but I reached out to the developer and requested an export feature. Sure enough - it shows up in the next update!

Regular Expressions are new to me, so it’s important that I can take my learning and practice on the go. This app is perfect for that. No fuss - just works.

Developer Response ,

Thank you very much for using RegEx Lab 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, for example, based on 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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