RegExRX
RegExRX is a regular expression testing and development tool for macOS, designed to help developers and system administrators build, test, and debug regex patterns interactively. It provides a live preview pane that shows matches as you type, syntax highlighting, support for multiple regex flavors, and export options for tested patterns. The app is used by developers working with shell scripts, text processing, and data validation workflows. RegExRX has been discontinued and is no longer actively maintained by the developer.
AI Recommendation
1 suggestionRegExRX has been discontinued and is no longer supported by the developer — the Roaring Apps database flags it as end-of-life. Although the app was briefly updated with a Universal Binary for Apple Silicon at some point, development has stopped and no further updates are forthcoming. The Intel build continues to work under Rosetta 2 today, but will stop launching entirely when Apple removes Rosetta in macOS 28 (late 2027). If you still rely on RegExRX for regex testing and development, consider migrating to a maintained alternative such as Regex101 (web-based, excellent testing and syntax highlighting), RegexMate (Mac App Store, actively developed), or Patterns (Mac App Store, modern regex IDE). For command-line workflows, grep, sed, and Perl or Python regex libraries remain powerful free options. Any of these alternatives will continue to work on macOS 28 and beyond.
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