Now with flow diagrams — visualize how your regex works, token by token. Live matching, cheat sheet, and CloudKit sync in one focused tool.
Visualize, test, and master regular expressions with RegEx+.
RegEx+ is a focused regex toolkit for developers on iPhone, iPad, and Mac. Build and test patterns live, then instantly see how they work with interactive flow diagrams — a visual breakdown of every part of your regex.
KEY FEATURES
• Flow Diagrams — See your regex as a diagram. Instantly understand how each token, group, and quantifier connects.
• Live Matching — Results update as you type. Match, capture, and replace in real time.
• Cheat Sheet — A comprehensive reference for metacharacters, anchors, groups, and operators. Always one tap away.
• Pattern Library — Save and organize your patterns. Sync across all your devices via CloudKit.
• Multi-language Support — Available in English, French, German, Spanish, Italian, Japanese, Dutch, Polish, and Chinese.
Whether you're debugging a complex pattern or learning regex from scratch, RegEx+ gives you the tools to understand what your expression actually does.
Download RegEx+ and start writing better regex today.
Hello, can you add the ability for one to sort the titles of the regexes alphabetically? Could you also maybe add a tagging and/or folder feature to sort into categories? Thank you
Developer Response
Yes, will do. Thank you for your feedback.
Needs a lot of improvement
Calion
This is a beta of a decent app. The UI is clunky and unpredictable. For one example, tapping the "New" ("+") button gives you a different template every time for the first several presses, then gives blank entries. This is crazy design. The templates are fine, but that's not how to discover them. Also, there's no easy way to get back to your expression after pressing the "cheatsheat" button (which looks like a "magic" button; I had hoped that it led to a "regex constructor" feature). It also took me a bit to discover that "match"=red text, as there's no text that *dossnt* match in the templatesNot worth paying money for, and really not yet good enough to be on the app store. But it has potential; I especially like that it's Mac-compatible with built-in syncing (though I haven't tested this feature).
First impression, I agree with the other guy, needs work.
Abslaiebelaindksb
But it works and works pretty decent. Major buy though: pressing ‘return’ crashes the app when typing in the ‘evaluation text’ area. I lost my regex like that :( Pasting a value in with new lines works fine though. Another bug is that if your regex is line enough to wrap to the next line, when you delete someone at the start of it, making it short enough to unwrap back into a single line, the cursor moves to the end of the regex and you start removing characters from the end instead of where your cursor was initially
• Substitution templates now expand escape sequences like \n, \t, and \r - typing \n inserts a real newline instead of the letter "n".
• Tap a match in the sample matches list to flash its text in the sample field.
Version 1.3
The developer, 圣罡 汤, 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 Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Larger Text
Dark Interface
Sufficient Contrast
Information
Seller
圣罡 汤
Size
4.9 MB
Category
Developer Tools
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
iPad Requires iPadOS 26.0 or later.
Mac Requires macOS 26.0 or later.
Apple Vision Requires visionOS 26.0 or later.
Languages
English and 10 more
English, Dutch, French, German, Italian, Japanese, Korean, Polish, Simplified Chinese, Spanish, Traditional Chinese
