AI Regex Generator

Patterns are not built from descriptions here. The Regex Tester does the part of this that can be done honestly, and this page exists to hand you over to it.

Asking for a pattern that matches a phone number leaves out every decision that makes one right or wrong: whether the country code is optional, which separators you will accept, whether an extension counts. A model guesses at those from what it has seen; running a candidate against your own samples settles them with evidence. Since a generated pattern has to be checked that way in any case, starting at the checking step reaches the same pattern with one fewer guess in the middle.

Nothing typed on this page is collected, and the tester it points to evaluates patterns inside your own browser, so neither the description nor your sample text travels.

Regex Tester to build and verify a pattern against real samples, Find and Replace Text once the pattern holds up, and a syntax reference when you need to recall what a lookahead does.

Also known as: generate regex · text to regex · create regular expression · regex builder ai · ai regular expression generator