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What it is
Utilverse's Password Generator creates strong passwords, memorable passphrases and robust numeric PINs right in your browser. It uses the native cryptographic generator (crypto.getRandomValues) — no word ever leaves your device, no logs, no trackers. Pick a length, choose character classes, or switch to passphrase mode powered by the EFF Diceware long wordlist (7776 words) for sentences that are easy to remember but mathematically strong. Every result shows entropy in bits and an estimated crack time computed via zxcvbn.
- Three modes: classic password, EFF Diceware passphrase, and numeric PIN — covers every real-world need
- Generate 10 options to compare
- Total privacy: everything runs in your browser, no upload, no tracking, no upsell
How it works
Pick a mode
Classic password for online accounts, Diceware passphrase for something you can memorize, PIN for SIM cards, ATMs or padlocks.
Tune the options
Adjust length, character classes, word separator or PIN filters. Your preferences are saved locally for next time.
Copy and use
Generate 10 candidates at once, gauge strength with the live entropy meter, copy the one you like with a single click.
Features
Cryptographic CSPRNG
Uses crypto.getRandomValues with rejection sampling to guarantee a uniform distribution and no modulo bias. Never Math.random.
EFF Diceware Passphrases
EFF Long wordlist with 7,776 words: every word adds 12.9 bits of entropy. A 5-word passphrase already clears 64 bits.
Live Entropy Meter
zxcvbn score + mathematical entropy in bits + estimated crack time. Understand how strong every candidate is before you pick it.
Zero Server, Zero Tracker
Passwords never leave your browser. No logs, no content analytics, no upsell toward password managers.
FAQ
No. Generation happens entirely in your browser using the native Web Crypto API. No data ever leaves your device.
For critical accounts use at least 16 characters with all character classes enabled, or a 5+ word EFF Diceware passphrase. For throwaway accounts 12-14 characters is fine.
A password built from random words drawn from a wordlist curated by the Electronic Frontier Foundation. Easier to memorize than a traditional password while remaining mathematically strong (12.9 bits per word).
Never. Generate a distinct PIN for each service (ATM, SIM, bike lock) and turn on "avoid obvious sequences" to skip trivial combos like 1234 or 1111.
Yes — fully free, no signup, no ads, no trackers on generated content. Utilverse runs on voluntary donations.