Regex Editor & Tester

Validates a password that is at least 8 characters long and must contain at least one lowercase letter, one uppercase letter, one digit, and one special character ($, @, !, %, *, ?, or &) enforced via positive lookaheads. The matched string may only consist of characters from the combined allowed set, rejecting any other symbols or whitespace. Commonly used in registration forms and authentication flows to enforce strong password policies.