Simple tools to check and improve your passwords

The purpose of passcheck.org is to provide tools and information regarding defensive password security. Most password tools just say “strong” or “weak”. This site aims to show you what’s actually wrong and how to fix it.

Everything runs with privacy as priority. Your input isn’t stored.

Tools

• Password Checker — see real weaknesses like patterns, common masks, and reused structures
• Time to Crack — estimate how long your password would last against combinational attacks
• Password Generator — create strong, unpredictable passwords
• PIN Checker — analyze PINs for sequences, repeats, and common patterns
• PIN Generator — generate PINs that avoid obvious weaknesses
• Personal Info Check (coming soon) — find out if your password could be guessed from things like your name or birthday

Latest articles

• How your passwords are stored (and why it matters) — 23-04-2026