Strong Password Validation Regex

Enforce modern password complexity requirements using positive lookahead assertions (?=...).

PATTERN

//g

TEST STRINGHIGHLIGHTED MATCHES (0 matches)

Valid: P@ssw0rd123, Strong#Pass99
Invalid: password, PASSWORD, Pass1234, P@ssword

Regex Cheatsheet

COMMON PATTERNS

SYNTAX REFERENCE

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Enforce minimum security standards on user password input fields.

Positive lookaheads (?=.*[A-Z]) verify that at least one uppercase letter exists anywhere in the string without consuming characters.

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