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Strong Password Generator

Generate cryptographically secure random passwords — pick length, character classes, exclude ambiguous chars. Entropy meter. Uses crypto.getRandomValues, nothing leaves your browser.

All tools Browser-only

Strength — · — bits

What makes a strong password?

Length beats complexity: 16 lowercase+digits beats 8 of every class.
Entropy ≥ 80 bits: safe for most accounts. ≥ 120 for banking / crypto wallets.
Never reuse: one password per account. Use a password manager.
Avoid personal data: names, birthdays — trivially guessable via OSINT.

Who this is for

Content writers, editors, SEO specialists, devs handling text/markdown — URL slugs, char counts, regex testing, SQL formatting.

FAQ

Does this support Vietnamese diacritics?

Yes. All text tools fully support Vietnamese Unicode, including modern diacritic rules.

Is my pasted text saved?

No. Text only exists in the current tab. Refresh or close = gone. TopDev stores nothing.

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