Free Password Generator
Create strong, random, hard-to-crack passwords. Everything runs in your browser — nothing is sent to a server.
What is a password generator?
A password generator is a tool that creates random, unpredictable passwords for your online accounts. Because the characters are chosen at random, the result has no name, word, or pattern that an attacker's software can guess.
This generator builds every password locally in your browser using crypto.getRandomValues — the same cryptographically secure randomness used for encryption keys. Your password is never sent to a server, logged, or stored.
How to use the password generator
Set the length
Drag the slider to 16 characters or more, or tap a preset. Longer passwords are exponentially harder to crack.
Choose character types
Keep uppercase, lowercase, numbers, and symbols on for maximum strength.
Copy and store it
Press Copy, then paste the password straight into your password manager.
What this tool offers
Adjustable length
From 6 to 48 characters, or one-tap presets.
Four character sets
Uppercase, lowercase, numbers, and symbols — any combination.
Avoid look-alikes
Optionally drop confusable characters like 0/O and 1/l.
Live strength meter
Instant Weak-to-Very-strong rating based on entropy.
Crack-time estimate
See roughly how long an attacker would need.
100% in your browser
No server, no logging, no account — fully private.
Why do strong passwords matter?
Strong passwords matter because most account breaches begin with a weak or reused one. Automated software can test billions of common and pattern-based passwords per second, so anything short or predictable falls quickly.
A long random password has no pattern at all. The only attack left is brute force — trying every possible combination — and that becomes impractical fast: each extra character multiplies the number of possibilities. A 16-character random password is far beyond the reach of any current attacker.
The second half of the problem is reuse. If you use the same password everywhere, one leaked site exposes them all. A generator makes it painless to give every account its own unique password.
Password length vs. time to crack
Rough estimate for a fast offline attacker, assuming a random password with all four character types.
| Password length | Estimated time to crack |
|---|---|
| 8 characters | A few hours |
| 10 characters | Several weeks |
| 12 characters | A few centuries |
| 14 characters | Millions of years |
| 16 characters | Billions of years |
| 20+ characters | Effectively uncrackable |
Password best practices
Do
- Use 16 characters or more.
- Give every account its own unique password.
- Store passwords in a password manager.
- Turn on two-factor authentication where offered.
- Mix uppercase, lowercase, numbers, and symbols.
Don't
- Reuse the same password across sites.
- Use names, dates, or dictionary words.
- Keep passwords in a plain text file or sticky note.
- Share passwords over email or chat.
- Rely on simple substitutions like P@ssw0rd.
Stronger account security, beyond the password
Turn on two-factor authentication (2FA). Wherever a site offers it, switch on 2FA in the account's security settings. It adds a second step at login — usually a code from an authenticator app such as Google Authenticator or Authy — so a stolen password alone is not enough to get in. Prefer an authenticator app over SMS codes, which can be intercepted.
Use passkeys where they are offered. A growing number of services now support passkeys — a passwordless login tied to your device's fingerprint, face, or PIN. A passkey cannot be phished, reused, or leaked in a breach, because there is no shared secret to steal. Where a site offers a passkey, it is the strongest option available; keep a generated password as the backup.
Change a password when it is exposed — not on a fixed schedule. The old advice to rotate passwords every 90 days has been dropped: forced regular changes push people toward weaker, predictable passwords. Current guidance (NIST) is to keep one strong, unique password per account and change it only when there is a reason — the site reports a breach, the password may have been phished, or you notice suspicious activity.
Where to store your passwords
A random password is only useful if you keep it safely. A password manager stores and autofills your passwords so every account can have its own.
Frequently asked questions
Is this password generator safe to use?
Yes. Every password is generated locally in your browser using the cryptographically secure crypto.getRandomValues API. Nothing is sent to a server, stored, or transmitted anywhere — the password exists only on your screen.
How long should a password be?
Use at least 16 characters. Longer is stronger because each added character multiplies the number of possible combinations. For accounts that matter most — email, banking, your website admin — use 20 or more characters with all character types enabled.
Why use random passwords instead of ones I can remember?
Memorable passwords follow patterns — words, names, dates, keyboard runs — that cracking software guesses quickly. Random passwords have no pattern, so the only way in is brute force. You do not need to remember them: store them in a password manager.
How often should I change my password?
Only when there is a reason to. Modern guidance (NIST) advises against changing passwords on a fixed schedule, as it leads to weaker ones. Change a password if the site is breached, it may have been phished, or you notice suspicious activity.
Can a strong random password still be hacked?
Not by guessing — a long random password is beyond brute force. It can still be exposed by a data breach, phishing, or malware. That is why unique passwords per site and two-factor authentication matter alongside strength.
What does "avoid look-alikes" do?
It removes characters that are easy to confuse — such as 0 and O, or 1, l and I — from the password. Turn it on when you may need to read or type the password by hand rather than copy-paste it.
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