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About this tool

This password generator creates random passwords you can use for email, banking, work apps, and password managers — without sending characters to a remote server.

Pair generation with the built-in strength checker to see how length and character mix affect estimated strength before you save a new credential.

Prefer unique passwords per site. A long random string from this tool plus a password manager is safer than reusing a memorable phrase across accounts.

Tips for better results

Aim for at least 16 characters for important accounts; longer is better when a site allows it.
Enable uppercase, lowercase, numbers, and symbols unless a site blocks special characters.
Avoid copying passwords into shared docs or chat. Paste only into the password field or your manager.
Use the checker on an existing password to spot weak patterns — then replace weak ones, do not reuse them elsewhere.

How to use

1 Set your password length.
2 Choose uppercase, lowercase, numbers, and symbols.
3 Generate and copy a secure password.

Strength guide

How to read the strength feedback

The meter estimates guess resistance from length, character variety, and obvious patterns. It cannot see whether you reused the password elsewhere or whether a site was breached later.

Length first

For random passwords, adding characters usually helps more than sprinkling a single symbol into a short word. Prefer 12–16+ characters when a site allows it.

Character sets

Enable upper, lower, digits, and symbols when the site accepts them. If symbols are banned, compensate with more length instead of a clever phrase you will reuse.

Patterns to avoid

Keyboard walks, repeated blocks, years, and obvious words are in attacker dictionaries. Random generation beats personal mnemonics for site logins.

Private generation

ShishwaLab creates passwords in your browser with Web Crypto. Copy once into a password manager, then clear the page. Pair with MFA on email and banking.

FAQ

Are generated passwords stored?

No. Passwords are created locally in your browser and are not saved by ShishwaLab.

What makes a password stronger?

Length matters most. Mixed character types and avoiding common words or personal details also help.

Can I check my own password?

Yes. Paste it into the checker to see an estimated strength score. Prefer checking offline when possible.

Should I write passwords down?

If you must, store them in a trusted password manager rather than plain notes or browser autocomplete alone.

Is client-side generation safe?

Yes for everyday use: randomness stays in the browser. Still keep your device malware-free and never share screenshots of passwords.

How often should I change passwords?

Change them after a breach or suspected leak. Otherwise focus on unique, long passwords rather than frequent arbitrary rotation.