# Regex

A regular expression, or regex, is a pattern that describes text to find, such as an email address or a date. Regex tools are for testing a pattern against sample text, seeing each match and capture group, and understanding what each part of the pattern does. Syntax differs slightly between programming languages and regex engines.

## Tools

- Regex Tester (Coming soon): Test a regular expression against sample text and see every match and capture group.

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