RegexTester: Regex

RegexTester lets you build, test, and debug regular expressions live — with instant matches, groups, and explanations. Type a pattern and watch every match highlight in your test string in real time — no compile, no guesswork. Captured groups, named groups, and ranges are color-coded and itemized so you know exactly what fired. Toggle case-insensitive, multiline, dot-all, and more — and watch results update instantly. Quick-reference tokens, lookarounds, and quantifiers — drop them straight into your pattern. Your patterns and test data never leave your device. No accounts, no ads, no tracking — ever. — SUBSCRIPTION — RegexTester Premium unlocks all features. - Weekly: $9.99 per week - Yearly: $49.99 per year (3-day free trial) Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period. Manage or cancel anytime in App Store settings. Terms of Use (EULA): https://web-levi.web.app/terms-of-service Privacy Policy: https://web-levi.web.app/privacy-policy