Regex Match Lab
Test, capture and replace
$1.99 · Designed for iPad. Not verified for macOS.
Test regular expressions with live highlights, capture-group details, replacement previews, and reusable tests saved on your device.
Build, test, and reuse regular expressions without sending your text anywhere.
TEST PATTERNS LIVE
Enter a pattern and sample text to see matches update as you work. Toggle ignore-case, per-line anchors, and dot-matches-newline options.
SEE EXACT MATCHES
Matched text is highlighted in place and plotted on a compact match map. Every result includes its exact source range.
INSPECT CAPTURE GROUPS
Open each match to see numbered capture groups, captured values, and ranges. Use the included email, log, and date examples as practical starting points.
PREVIEW REPLACEMENTS
Switch to Replace, enter an NSRegularExpression replacement template, and review the complete transformed text before using it elsewhere.
SAVE REUSABLE TESTS
Name useful pattern-and-sample combinations, update them, reopen them after relaunch, or share a plain-text result report.
BUILT FOR REAL WORK
The adaptive workbench fits iPhone and iPad. Large samples and result counts are bounded to keep previews responsive.
PRIVATE BY DESIGN
Tests stay locally on your device. There is no account, analytics, tracking, advertising, cloud upload, or server connection.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Paran, 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
- Paran
- Size
- 2.4 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © Paran

