Password Generator & Checker
Generate secure passwords and evaluate their strength in real-time.
Strength Score
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Key Features
- Cryptographically Secure & 100% Local: Generate unpredictable passwords using military-grade random number generation via the Web Crypto API (CSPRNG). All processing stays within your browser with zero data sent to external servers for total peace of mind.
- Real-Time Strength Check via Global Standards: Powered by the "zxcvbn" algorithm (used by Dropbox). It instantly detects dictionary attacks and common patterns (like qwerty) to provide an accurate 5-level score and actionable improvement advice.
- Zero-Leak Safe Password Breach Check: Utilizing the k-anonymity model, your password is only hashed locally. You can safely check past leak risks against the Have I Been Pwned database without ever transmitting the actual password.
- 4 Powerful Generation Modes for Any Purpose: Choose from standard Passwords, highly secure yet memorable "Passphrases" using dictionary words, numeric-only "PINs", or fully "Custom" formats tailored to specific requirements.
- Ultimate Convenience & Customization: Features options to exclude visually similar characters (like 1 and l, 0 and O), automatic generation of NATO phonetic codes for reading over the phone, and convenient QR codes for easy mobile syncing.
- Auto-Save Settings & One-Click Copy: Your preferred character types and length settings are automatically saved in your browser for next time. Generated passwords can be securely copied to your clipboard with a single click.