Regex Tester - Live Match
Live match + code snippets
Free · Designed for iPad. Not verified for macOS.
Test patterns on your device with Dart's ECMAScript regular-expression engine. See highlighted matches, positions and capture groups. Toggle ignore case, multiline and dot all; preview replacements with capture groups. Save named favorites with flags and recall recent successful patterns.
Code examples are available for JavaScript, Python, Dart, Java, Kotlin, Swift, Go, PHP and Ruby. Other engines may behave differently. This app does not execute or validate those engines. Copy is disabled for unsupported cross-engine syntax or flag combinations; verify examples in your target runtime.
Browse 45 reference patterns and 10 sample texts. Reference content includes Korean. Email, URL and similar patterns are learning examples, not security or complete input validation.
Matching runs in a cancellable background task with a 500 ms time limit. Limits: pattern 2,000 UTF-16 units, text/replacement 20,000 units, first 500 matches and 100,000 units of result data/output. Partial results are labelled; their total is unknown and replacement is unavailable. Simplify your input if a limit is reached.
Core matching, replacement, favorites and history work offline. No ads or tracking prompt. Share only when you tap Share; sharing uses your selected app. Copied text goes to your device clipboard. English controls; reference content includes Korean.
Ratings & Reviews
Corrected code example quoting and flags, added cancellable matching with limits, fixed stale replacement results, protected unreadable saved data, and removed ads and tracking prompts.
The developer, HeungYeol Kim, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HeungYeol Kim
- Size
- 19.5 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 ddojai