Secure Password Generator
Generate cryptographically secure passwords locally via crypto.getRandomValues() with accurate real-time entropy scoring and zero server transmissions.
Cryptographically Secure & Local: Generated with
crypto.getRandomValues(). Passwords are never sent across the internet.Strength:Very Strong
Entropy: 103 bits•Pool: 88 chars•Length: 16
Password Settings & Character Sets
Password Length16 characters
4 (Minimal)16 (Standard)32 (Strong)64 (Maximum)
How It Works
- Generates uniform cryptographic randomness with Web Crypto crypto.getRandomValues().
- Calculates real-time information entropy (bits) based on active character pool cardinality.
- Supports excluding visually ambiguous characters like l, 1, I, O, 0 for error-free transcription.
Formula & Technical Standard
Entropy (bits) = Length * log2(Pool Size)
Practical Example
20-char password
Input: 20 chars, all sets
Output: e.g. k9#mQ!8vL2$pZ#4wT7*x
Entropy exceeds 130 bits.
Frequently Asked Questions
Are passwords sent to your server?
Never. Processing is 100% client-side in your browser memory.
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