Generate strong passwords and analyze entropy. Password utilities like random generator, entropy estimator & simple transformers. All tools run locally in your browser—no signup or registration required.
Password tools help you create strong, secure passwords and understand password strength. Generate cryptographically secure random passwords with customizable character sets and lengths for any account. Analyze password entropy to understand how resistant your password is to brute-force attacks, and estimate time-to-crack based on different attack scenarios. Transform base passwords using leet speak substitutions to create memorable variants. Essential for security professionals, system administrators, developers, and anyone concerned with account security.
Start with the Random Password Generator to create strong passwords with options for uppercase, lowercase, numbers, and symbols—adjust the length as needed (most services recommend 12+ characters). Use the Password Entropy Estimator to analyze any password by entering it and selecting a guess rate to see how long it would take to crack. Try the Base Password Transformer to apply leet speak transformations to a memorable base password, creating variants that are harder to guess. All tools work offline in your browser with no account required.
100% Browser-Based
All processing happens locally in your browser for maximum speed and privacy
No Account Needed
Start using tools immediately without signup, registration, or login
Completely Free
Unlimited usage of all features with no hidden costs or premium tiers
Cross-Platform
Works on desktop, tablet, and mobile devices with responsive design