Regex Visualisation Tool

Build a regular expression, generate the strings it accepts, and check equivalence between two regular expressions.

+ union * star ε empty string . is implicit

Generate Strings

Enter one regular expression. The tool shows the generated set of strings up to the chosen length.

Regular expression

Maximum length

Your generated strings will appear here.

Enter both regular expressions inside this module and compare them directly.

Regular expression 1

Regular expression 2

Equivalence result will appear here.