Search for API Security Tests

Password Regex Javascript Validator

Password Regex Javascript Validator

Regex Tester Online tools to learn, build & test Regular Expression (RegEx/RegExp)
0 match
/ gm
Possible security issues
Match information

Regular Expression - Documentation

Regular Expression - Documentation


Password validation in JavaScript is typically required in web applications for client-side validation. JavaScript regex can be used to enforce password policies, such as requiring a mix of character types and a minimum length. An example regex pattern is /^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d)(?=.*[@$!%*?&])[A-Za-z\\d@$!%*?&]{8,}$/.

What is Password Regex?

The regex pattern for password validation in JavaScript includes checks for diverse character types and length.

The Password Regex Pattern

  • Pattern:


    This pattern mandates mixed characters and a minimum length of 8.

How to Validate Passwords in JavaScript?

To validate passwords in JavaScript:

function isValidPassword(password) {
    const regex = /^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/;
    return regex.test(password);

console.log(isValidPassword("Example123!")); // true or false

Uses of Password Regex Validation

  1. Client-Side Security: Enforcing strong passwords in user forms before submission to the server.

  2. Usability: Providing immediate feedback to users on password strength and requirements.


JavaScript's regex provides a flexible approach to client-side password validation, enhancing security and user experience in web applications. For more intricate password validation needs, Akto's regex validator can offer additional support, ensuring compliance with diverse password policies.

Frequently asked questions

Why is password validation important in web applications?

What does the password regex pattern /^(?=.*[a-z])(?=.*[A-Z])(?=.*\\\\d)(?=.*[@$!%*?&])[A-Za-z\\\\d@$!%*?&]{8,}$/ mean?

Can I customize the password regex pattern to fit my specific requirements?

How can I use the isValidPassword function in my JavaScript code?

Are there any additional tools available for more complex password validation needs?

Password Regex Javascript Validator



Password Regex Javascript Validator