Regex Generator
Generate regular expressions – with templates and visual builder
Templates
Builder
Regex Pattern
Test
What is a Regex Generator?
A Regex Generator helps you create regular expressions quickly and correctly. Instead of memorizing complex regex syntax, you can choose from ready-made templates for common patterns like email addresses, URLs, phone numbers or date formats. The visual builder allows you to combine building blocks like character classes, quantifiers and groups, and immediately test the result against a test string.
How do I use the Regex Generator?
Choose a template for common patterns or build your regular expression with the visual builder. Building blocks are appended to the current pattern. Enter a test string to immediately see which parts are matched – hits are highlighted in yellow. Use the flag buttons (g, i, m) to control global search, case sensitivity and multiline mode.
Why generate regex online?
Regular expressions are powerful but error-prone. Our generator provides instant visual feedback through live highlighting, a library of tested templates and a builder with all important regex building blocks. Everything runs directly in your browser – no data is transmitted. Ideal for developers, QA testers and anyone who regularly works with text processing.
More Tools
Also try our Regex Tester to test patterns, the Diff Checker to compare matches, or the JSON Formatter for structured data.