Regex Pattern Tester - Tool

Regex Pattern Tester is a fast, fully offline utility designed to help developers and students test, debug, and understand regular expressions without relying on online tools. The app works completely on your device. No internet connection, no permissions, and no data collection. Key features Real-time regex matching with instant highlights Find and replace with capture group support ($1, $2, etc.) Instant pattern validation with clear error messages Built-in library of common regex patterns (email, URL, date, phone, and more) Searchable history saved locally on your device Export results as plain text, HTML, JSON, or Markdown Built-in regex cheat sheet for quick reference Clean Material 3 interface with light and dark themes Privacy-first design Works completely offline No internet access required No ads or trackers No permissions needed All data stays locally on your device Who this app is for Developers testing and debugging regex patterns Students learning regular expressions System administrators working with logs and text data Writers and editors using pattern-based text replacement Technical details Android 6.0 and above Small app size English language No background services Regex Pattern Tester is a simple, reliable, and private tool for anyone who needs accurate regex testing anytime, anywhere. Support If you have questions or feedback, contact us at: [email protected]