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Regex Explainer

Understand any regular expression in plain English — token by token.

Regular Expression Pattern

Flags: g global i ignore case m multiline s dot all

Quick Examples

Plain-English Explanation

Enter a pattern above to see the explanation.

Test Your Pattern

How to Use the Regex Explainer

Paste or type a regex pattern — no need to include surrounding slashes.
Each token in the pattern will be broken down and explained in plain English.
Use the Quick Examples to load common patterns like email or URL.
Use the Test section to see which parts of your text the pattern matches.