Util Hub.io

Password Generator

Generate strong random passwords or word passphrases instantly with a live entropy meter.

Settings

464

Result

r&YPvxqi]6[kI{&q
StrengthStrong

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Strong Password Generator — Free, No Signup

Generate cryptographically strong, random passwords or memorable word-based passphrases — instantly, with no signup and no upload. UtilHub's password generator runs entirely in your browser using the Web Crypto API (the same secure random source used by 1Password and Bitwarden), and shows a live entropy meter plus an estimated crack time so you can see exactly how strong each password really is. Tune length, uppercase, numbers, symbols, and exclude ambiguous characters like 0 and O; switch to passphrase mode for human-friendly logins. Unlike password manager landing pages, there is no funnel, no product upsell — just the tool.

How to use Password Generator

  • Choose "Random" mode for character passwords or "Passphrase" for word-based.
  • Adjust the length slider and toggle uppercase, numbers, and symbols.
  • Optionally exclude lookalike characters (0/O, 1/l/I) for clarity.
  • The password regenerates as you tweak settings — entropy and crack-time update live.
  • Click "Copy" to send the password to your clipboard; it never touches a server.

Features

  • Cryptographically secure — Generated via the Web Crypto API (crypto.getRandomValues), not Math.random — the same entropy source used by 1Password and Bitwarden.
  • Live strength meter — Entropy in bits and estimated crack time update as you change length or character sets, so you can dial in real security, not theatre.
  • Passphrase mode — Generate memorable XKCD-style passphrases from a large word list — long, hard to crack, and easy to type on mobile.
  • Zero data transmission — Every password is generated locally. Nothing is logged, transmitted, or stored — verifiable offline.

Frequently Asked Questions

Is it safe to generate passwords on a website?

Only if the page generates them in your browser, never on a server. UtilHub uses the Web Crypto API (crypto.getRandomValues), which draws randomness from your operating system's entropy pool. The generated password never leaves your device — you can verify by disconnecting from the internet after page load and watching the tool keep working. Avoid any generator that sends passwords over the network.

What makes a password actually strong in 2026?

Modern guidance favours length over complexity. A 16-character random password mixing letters, numbers, and symbols has roughly 100 bits of entropy — uncrackable with current hardware. A 6-word passphrase from a 7,776-word list has about 77 bits, still strong and far easier to remember. Avoid dictionary words, names, dates, and reuse — those are what attackers try first.

What is the difference between a password and a passphrase?

A password is a short, dense string of mixed characters like `Kq8$nP2!vR9z`. A passphrase is a longer string of random words like `correct-horse-battery-staple-cosmic-otter`. Passphrases are typically longer, hold more entropy per character of typing effort, and are easier to remember and to enter on phone keyboards. Both work for any service that accepts passwords up to the field's max length.