🔒 Security Tools
Check and generate strong passwords — all in your browser — 2 free tools, no signup required.
Free Password Tools — Check and Generate, 100% in Your Browser
Passwords remain the keys to digital life, and most successful account takeovers still trace back to two habits: weak passwords and reused passwords. These two tools attack both problems — and both run entirely client-side, meaning nothing you type or generate is ever transmitted to any server. You can verify that claim in your browser's network inspector.
The Password Strength Checker analyzes any password as you type: it computes entropy (the real mathematical measure of unpredictability), estimates realistic cracking time on modern GPU hardware, flags common passwords, keyboard sequences and repeated characters, and gives you a concrete checklist of improvements. It teaches the key insight most complexity rules miss — length matters more than symbols.
The Password Generator creates passwords worth protecting accounts with: cryptographically secure randomness (the same browser API used for encryption keys), configurable length up to 64 characters, guaranteed inclusion of every character set you select, an option to exclude confusable characters for passwords you might read aloud, and bulk generation for provisioning many accounts at once.
Use them together: generate with one, verify with the other, store the result in a password manager, and turn on two-factor authentication everywhere it is offered.