Strong Password Generator
Create strong, random passwords using your browser's cryptographic random number generator. Choose the length and which character sets to include, watch the strength read-out respond, and copy the result without it ever leaving your device.
How it works
- 1
Set the length. Sixteen characters or more is a sensible default for accounts that matter.
- 2
Toggle uppercase, lowercase, numbers and symbols to match what the target system actually accepts.
- 3
Generate — characters are drawn from crypto.getRandomValues(), not from Math.random().
- 4
Copy the password straight into your password manager, then generate a fresh one for the next account.
What people use it for
- Creating a unique password per account so one breach cannot unlock the others.
- Generating a strong Wi-Fi passphrase for a router or guest network.
- Producing API keys, database passwords or service credentials for a project.
- Rotating a password that was shared, reused or exposed in a leak.
Supported formats & options
| Length | Adjustable, from short PIN-style strings up to 64 characters |
|---|---|
| Character sets | Uppercase A-Z, lowercase a-z, digits 0-9, common symbols |
| Randomness source | window.crypto.getRandomValues (Web Crypto API) |
Key advantages & benefits
Cryptographic randomness
Characters come from the Web Crypto API, the same source browsers use for security-sensitive work — not a predictable pseudo-random sequence.
Character sets you control
Turn symbols off for systems that reject them, without weakening the rest of the password.
Live strength feedback
The strength read-out updates as you change length and character sets, so the trade-off is visible before you commit.
Nothing transmitted
The password is generated and displayed locally. There is no request that could carry it into a server log.
Limits & things to know
- A generated password is only as safe as where you put it. Store it in a password manager rather than a note or spreadsheet.
- Disabling character sets shrinks the search space — a digits-only password is far weaker than a mixed one of the same length.
- The tool does not check a password against breach databases; a freshly generated random password has effectively no chance of appearing in one.
Troubleshooting
A site rejects the generated password
Some systems ban particular symbols or cap the length. Turn symbols off or shorten it to fit the rule, and add length back to compensate.
The copy button does nothing
Clipboard access needs a secure (HTTPS) context and a direct click. Click the button itself rather than triggering it another way, or select the text and copy manually.
Privacy & data handling
Passwords are generated inside your browser with the Web Crypto API and are never sent anywhere. We cannot see, log or recover a password created here — if you close the tab without saving it, it is gone.
Strong Random Password Generator — Free & Secure
Create strong, random passwords of any length using your browser's own cryptographic random number generator. This free secure password generator never sends a generated password anywhere, which is the only property that actually matters in a password tool.
- Cryptographically secure randomness — passwords are produced with the Web Crypto API rather than a predictable pseudo-random shuffle, so the output is genuinely unguessable.
- Full character control — choose length and mix uppercase, lowercase, numbers and symbols to satisfy whatever password policy the site in front of you enforces.
- Long passphrases supported — length beats complexity — generate 20, 32 or 64 characters for the accounts that actually matter, such as email and banking.
- Generated on your device, never transmitted — the password exists only in your browser tab and your clipboard; nothing is logged, stored or sent to a server to be generated.
- Unique password for every account — reuse is what turns one breach into ten — generate a fresh password per login and store them in a password manager.
Free, unlimited and account-free. Use the Hash Generator when you need to verify a checksum, and the UUID Generator for non-secret unique identifiers.
Frequently asked questions
How secure are generated passwords?
They use cryptographically secure pseudo-random number generators (CSPRNG), making them virtually uncrackable.
How long should a password be?
Sixteen characters or more with mixed character sets is a sensible default for accounts that matter. Length contributes more to strength than symbol variety, so if a site caps the length, use every character it allows.
Is it safe to generate a password on a website?
It is safe here specifically because generation happens in your browser using the Web Crypto API — the password is never sent anywhere and never reaches our server. That is worth verifying for any generator you use, not just this one.
Should I reuse a strong password across accounts?
No. Reuse is what turns one site's breach into a compromise of every other account. Generate a separate password per account and let a password manager remember them.
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