Diceware Passphrase Generator
Generate memorable, secure passphrases from a curated English wordlist. Configurable length (3-10 words), separator, capitalization, optional digit / symbol suffix. Live entropy meter shows real security strength.
What powers the Diceware Passphrase Generator
Cryptographically-secure randomness (Web Crypto)
3-10 words per passphrase
Live entropy bar (weak / moderate / strong / excellent)
Configurable separator (hyphen, period, underscore, space, none)
Optional capitalize, append-digit, append-symbol
Generate 1-20 candidates at once
Curated wordlist (~512 short, common English words)
Why the Diceware Passphrase Generator is different
Browser-native
The Diceware Passphrase Generator runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Master password for password manager
- Encrypting backups / archives
- Disk encryption (LUKS, FileVault, BitLocker)
- WiFi network password
- Any time you need a password you can memorize but is brute-force resistant
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.