# Cek Sandi

> Password strength checker using zxcvbn algorithm

- **Year**: 2024
- **Links**: [GitHub](https://github.com/bgwastu/ceksandi), [Check your password](https://ceksandi.wastu.net)

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](https://dumbpasswordrules.com/).

## What makes it different

Most password checkers are simplistic. Uppercase, lowercase, numbers, symbols, done. Cek Sandi uses the [zxcvbn algorithm](https://www.usenix.org/conference/usenixsecurity16/technical-sessions/presentation/wheeler), 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

Built with Next.js and Mantine, deployed on Cloudflare Pages.