Secure Password & Passphrase Generator
Create high-entropy random passwords and memorable multi-word passphrases. 100% generated in your browser — zero tracking, zero storage.
Random Character Passwords
Consisting of uppercase, lowercase, numbers, and special symbols. Perfect for password managers (1Password, Bitwarden, KeePass) where human typing is minimized. We recommend 16 to 32 characters for sensitive accounts.
EFF Multi-Word Passphrases
Based on the Electronic Frontier Foundation (EFF) long wordlist. Passphrases like orbit-falcon-glacier-matrix produce over 60 bits of entropy and are exceptionally easy to recall and type manually.
Understanding Password Entropy
Entropy is a mathematical measurement of randomness expressed in bits (log2(N^L)). Higher entropy means exponential brute-force cracking difficulty:
| Entropy Range | Rating | Brute-Force Resistance |
|---|---|---|
| < 36 bits | Very Weak | Cracked in seconds |
| 36 – 59 bits | Moderate | Hours to months offline |
| 60 – 79 bits | Strong | Centuries against GPU clusters |
| 80+ bits | Extreme / Military | Mathematically unbreakable |
Frequently Asked Questions
Can VegaCrypt see the passwords I generate?
Absolutely not. All computations occur inside your browser using the native WebCrypto API. There are no server calls, no telemetry on generated passwords, and no persistent caches.
Why avoid ambiguous characters?
Characters like 0 and O, or 1, l and I can be easily misread when typed on mobile or handwritten. Disabling them prevents frustrating login mistakes.
Need to Share Credentials Securely?
Send passwords, API keys, or confidential notes via self-destructing, zero-knowledge encrypted links.