RegEx+1.5

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, or start faster with 33 built-in templates. Sync across all your devices via CloudKit.
. Multi-language Support - Available in English, French, German, Spanish, Italian, Japanese, Korean, Dutch, Polish, Chinese, Danish, Finnish, and Norwegian.

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.

Version History • The template library more than doubled: 33 ready-made patterns — now including IPv6, MAC addresses, JSON strings, JWT tokens, credit card numbers, and GPS coordinates — each with sample text.
• New on iPad and Mac: quick actions in the detail pane let you start a new pattern or choose a template in one tap.
• The username template now has tighter boundaries for more precise matches. 1.5 Aug 29 • Organize your patterns into categories — assign them right in the editor, sync them across devices, and manage the list anytime. Deleting a category never deletes your regexes.
• Start from a template: 14 ready-made patterns — email, URL, UUID, semantic version, and more — each with sample text included.
• A cleaner library: sorting now sits beside search on iPhone, and the Mac sidebar is simpler than ever. 1.4 Aug 15 • 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. 1.3 Aug 1 What's New in RegEx+:

• Creating a new pattern now opens the editor immediately with the new item selected.
• Library search uses the native system search field for a more familiar experience.
• Sidebar stays expanded by default on iPad, with Liquid Glass polish and more reliable editor updates across iPhone, iPad, and Mac. 1.2 Jul 24 What's New in RegEx+:

• Export regular expressions as syntax-highlighted Swift Regex Builder code and copy them directly into your project.
• Editor and Flow Diagram selections now stay in sync, making complex patterns easier to trace.
• Added library sorting, faster Flow Diagram updates, and refined navigation across iPhone, iPad, and Mac. 1.1 Jul 19 What's New in RegEx+:

• New flow diagrams help you visualize how your regular expressions are interpreted.
• Improved editor layout and sample match details make patterns easier to review.
• Smoother iPhone navigation and scroll-to-dismiss keyboard support. 1.0 Apr 14 What's New in RegEx+:

• Added French, Italian, Korean, Dutch and Polish language support.
• Performance optimizations and stability improvements. 0.9 Mar 27 What's New in RegEx+:

• Added keyboard shortcuts for inserting common regular expression characters - now you can quickly insert metacharacters and operators with simple key combinations
• Performance optimizations for better app responsiveness
• Bug fixes and stability improvements 0.8 08/11/2025 Minor UI refinements for editor view 0.7.2 02/22/2024 Fixed a minor UI issue of editor view 0.7.1 02/22/2024 UI refinements and bug fixes 0.7 02/20/2024 Minor bug fixes for the regex editor. 0.6.6 09/23/2021 Fixed a performance issue of editor view. 0.6.5 06/28/2021 Fixed shaking of the edit view. 0.6.4 03/26/2021 1. Added a new search bar
2. Optimized for iPhone 12/12 Pro/12 Pro Max 0.6.3 11/23/2020 Refinements for iPadOS. 0.6.2 10/02/2020 Add missing navigation buttons. 0.6.1 09/28/2020 Optimized UI for iOS 14. 0.6 09/20/2020 Localized for both Simplified Chinese and Traditional Chinese. 0.5 06/22/2020 1. Add a share button that generates the traditional regex string.
2. Provide some wildly used regex template. 0.3 05/27/2020 Minor bug fixes. 0.2 05/13/2020 0.1 05/06/2020