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🔣 Regex Tester

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Quick reference

        

            
. any char

            
\d digit · \D non-digit

            
\w word char · \W non-word

            
\s whitespace · \S non-space

            
[abc] char set · [^abc] negated

            
^ start · $ end · \b word boundary

            
* 0+ · + 1+ · ? 0 or 1

            
{n} exactly n · {n,m} n to m

            
*? lazy quantifier

            
(x) group · (?:x) non-capturing

            
(?<name>x) named group

            
a|b alternation

            
(?=x) lookahead · (?!x) negative

            
(?<=x) lookbehind · (?<!x) negative