What is a password generator?
A password generator creates random secrets so you do not invent weak, memorable patterns. This Web6 tool runs entirely in your browser using cryptographic randomness.
Free tools
Free Secure Password Generator
Generate strong random passwords, passphrases and PINs in your browser with cryptographic randomness — no login and no password storage.
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Password security guide
How secure password generation works
Characters (or words) are selected with crypto.getRandomValues and rejection sampling so every symbol in the pool is equally likely, then shuffled when required groups are enforced.
Why crypto.getRandomValues matters
Browser cryptographic randomness is designed for security-sensitive choices. Math.random() is unsuitable for passwords because it is not cryptographically secure.
What makes a password strong?
Length, an unpredictable random source, a large character pool, uniqueness per account, and protection against phishing and malware all matter. Entropy alone is not a guarantee.
Why password length matters
Each extra random character multiplies the search space when the pool stays the same. Longer unique passwords generally resist guessing better than short ones.
Random password vs human-created password
People reuse words, years, and keyboard patterns. Uniform random generation avoids those habits — which is why generators help.
Password vs passphrase
A random character password maximizes pool density per glyph. A passphrase uses random words that can be easier to type while still offering high entropy when enough words are chosen.
How passphrase generation works
Words are picked securely from a bundled local list. Separators and optional digits/symbols add formatting or a bit of extra randomness without network lookups.
What is password entropy?
Entropy estimates unpredictability in bits for uniformly random secrets. Labels like Strong or Very strong are educational ranges, not crack-time predictions.
How many characters should a password have?
Policies differ. This tool defaults to 20 and offers quick lengths up to 128 (max 256). Prefer longer when the system allows it.
Should passwords contain symbols?
When allowed, symbols enlarge the pool. If a platform rejects some symbols, customize the symbol set or use alphanumeric-only mode.
Should you exclude ambiguous characters?
Excluding lookalikes helps when typing from paper or reading aloud, at a small cost to pool size. It is optional and explained in the UI.
What makes a secure PIN?
Use the longest PIN the system allows, avoid trivial sequences, and never treat a short PIN as equivalent to a strong account password.
Why password reuse is dangerous
If one service is breached, reused passwords expose every other account. Generate a unique secret each time.
Why every account should use a unique password
Unique passwords contain damage from any single compromise. Pair them with multi-factor authentication when available.
Why a password manager is useful
Managers store unique secrets, autofill safely, and reduce the need to memorize random strings. This generator creates secrets; a manager stores them.
Are browser-based password generators safe?
A well-built local generator that uses Web Crypto and never transmits secrets can be appropriate. Trust depends on the implementation — this one keeps generation on-device.
How clipboard risks work
Copying places the secret in the OS clipboard, which other apps may read until replaced. Clear clipboard is best-effort only.
Common password mistakes
Reusing passwords, choosing short secrets, relying on personal details, saving secrets in chat/email, and trusting fake “unhackable” claims.
How to create Wi-Fi passwords
Use a long random password or passphrase your household can enter once into a password manager. The Wi-Fi preset starts at 24 mixed characters.
How to generate API credentials safely
Use a long high-entropy secret (Developer/API preset), store it in a secrets manager, rotate when needed, and never commit it to git or analytics.
FAQ
Password generator FAQs
Answers about cryptographic randomness, entropy, passphrases, PINs, privacy, and clipboard safety.
Is this password generator free?
Yes. It is free, requires no account, and generates secrets only on your device.
Are generated passwords sent to Web6?
No. Passwords are generated entirely in your browser and are not sent to Web6 servers.
Does Web6 store generated passwords?
No. Web6 does not store, log, or transmit generated passwords. Preferences may be saved locally, but generated secrets are never written to localStorage.
Is crypto.getRandomValues secure?
crypto.getRandomValues is the standard Web Crypto API for cryptographically strong randomness in browsers and is appropriate for password generation.
Why shouldn't a password generator use Math.random()?
Math.random() is not cryptographically secure and can be predictable. This tool never uses Math.random() for password, passphrase, or PIN generation.
How long should a strong password be?
Longer unique passwords are generally more resistant to guessing. This tool defaults to 20 characters and warns below 12. Exact requirements vary by system.
Should I use uppercase letters?
Including uppercase increases the character pool when mixed with other sets. Enable it unless a policy forbids it.
Should I use numbers?
Numbers expand the pool and help meet many site policies. They are enabled by default.
Should I use symbols?
Symbols further expand the pool when allowed. Some systems reject certain symbols — use the custom symbol set or letters+numbers preset when needed.
What are ambiguous characters?
Lookalikes such as 0, O, o, 1, l, I, and |. Excluding them makes typing easier but slightly reduces the pool.
Can I exclude certain characters?
Yes. Use Exclude custom characters and optionally exclude ambiguous characters.
Can I generate a password without symbols?
Yes. Turn off Symbols or choose the Letters + Numbers preset.
Can I generate multiple passwords?
Yes. Bulk mode generates 1–1000 passwords with the same rules, with copy and TXT/CSV download.
Can I generate a passphrase?
Yes. Passphrase mode picks random words from a local word list with optional separators, capitalization, digits, and symbols.
Are passphrases secure?
Random multi-word passphrases can be strong. Strength comes from random selection and word count, not from forming a meaningful sentence.
What is password entropy?
Entropy estimates how unpredictable a randomly generated secret is, usually in bits. Higher bits generally mean a larger search space.
How is entropy calculated?
For uniform random passwords: length × log₂(pool size). For passphrases: words × log₂(word list size), plus random suffixes when used.
Can I generate a Wi-Fi password?
Yes. Use the Wi-Fi Password preset (24 characters, mixed sets) or customize length and symbols.
Can I generate a PIN?
Yes. PIN mode creates 4–20 digit codes with optional repeat/sequence exclusions.
Is a 4-digit PIN secure?
No for account passwords. Short numeric PINs have far less entropy and should only be used where a PIN is specifically required.
Can I copy generated passwords?
Yes. Use Copy. Clipboard contents are not sent to Web6.
Does the tool save clipboard history?
No. It does not store clipboard history. Other apps on your device may still retain clipboard data.
Can I use the tool offline?
After the page loads, generation uses only browser APIs and the bundled word list — no server calls for passwords.
Can I use it on mobile?
Yes. The layout stacks settings and results for small screens.
Does the tool remember my settings?
Yes. Non-sensitive preferences (length, character groups, mode, etc.) can be saved in localStorage.
Does it save my actual passwords?
No. Generated passwords, passphrases, and PINs are never saved to localStorage or a database.
Should I reuse a generated password?
No. Use a unique password for every account.
Should I use a password manager?
Yes, a password manager is recommended to store unique secrets safely. This tool generates secrets; it is not a vault.
Can I generate passwords for APIs or databases?
Yes. Use Developer/API or Database presets, then store the secret in your secrets manager — not in chat or email.
How do I clear my password from the clipboard?
Use Clear clipboard for a best-effort empty write. Guaranteed deletion across all operating systems is not possible from a web page.
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Disclaimer: This tool generates random passwords locally. It does not make accounts “unhackable.” Use unique passwords, protect devices, enable MFA, and secure recovery methods.