Password strength checker using zxcvbn algorithm

Cek Sandi

2024

I built this password strength checker to give awareness to people and developers about proper password rules. The goal? So we don't end up with more entries on dumbpasswordrules.com.

What makes it different

Most password checkers are simplistic. Uppercase, lowercase, numbers, symbols, done. Cek Sandi uses the zxcvbn algorithm, the same tool security professionals use. It analyzes common words, keyboard patterns, and predictable substitutions to show how resistant your password actually is to cracking attempts.

Features

  • Accurate strength analysis using zxcvbn algorithm
  • Tips for creating strong passwords (passphrases, not just random characters)
  • Open source, you can inspect the code and verify its security
  • Focused on Indonesian users with localized tips

Tools