Password Regex Tester

Test and validate password patterns with this specialized regex tester. Includes tested patterns and real-time matching.

Recommended Password Pattern

``regex ^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$`

`Test Examples`

Valid matches:

Password1

SecurePass123

MyP4ssword


Invalid (should not match):

password

PASSWORD1

Pass1

nouppercaseornumber


Pattern Explanation
Requires: 8+ characters, one lowercase, one uppercase, one digit
Alternative Patterns

1. ^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$`

How to Use

1. The pattern above is preloaded—or enter your own 2. Add test strings to validate 3. See real-time match highlights 4. Copy the pattern for your code

Regex Quick Reference

| Symbol | Meaning | Example | \dAny digit\d{3} matches "123" \wWord character\w+ matches "hello" +One or morea+ matches "aaa" *Zero or morea* matches "" or "aaa" ?Optionalcolou?r matches "color" ^Start of string^Hello $End of stringworld$ [abc]Character class[aeiou] matches vowels (ab)Alternation(catdog) matches either

Frequently Asked Questions

Is this pattern secure enough?

For stronger security, add special characters: (?=.*[@$!%*?&]) and increase minimum length to 12+. Also consider checking against breached password lists.

What regex flavor does this use?

This tester uses JavaScript regex (ECMAScript). Most patterns work the same in Python, Java, and other languages.

Password Regex Tester