Support
Test a pattern on your device and inspect matches, groups and replacement results. A limited prefix check can offer a clue when the full pattern has no match.
This page describes version 1.2.0 after its App Store release. Availability depends on the version installed; earlier versions follow the version-specific information in the privacy policy.
Pattern, text, groups and replacement
Saved patterns and local history
Engine limits and code-copy checks
No. Matching runs with Dart’s ECMAScript-style engine. Generated examples do not validate another runtime’s syntax or behavior.
Execution is limited to 500 ms with input, match-count and output limits. Partial results are not a full count and do not provide a replacement result.
Core matching, replacement and saved patterns work locally and offline. Copying writes to the device clipboard; sharing sends what you choose to the selected app.
Saved records and settings stay in the app’s storage on this device and are not automatically uploaded to a developer server. Test text is not stored in pattern history or favorites. Core matching runs on the device; copying puts content on the clipboard and sharing uses your selected app. This version has no ads or tracking. Opening an external link uses the linked service and its policies. Content is sent to another app only when you choose to share it. Device backups may include app data depending on OS settings; deleting the app does not delete backup or recipient copies.