Is this password generator secure?

Yes. Passwords are generated using your browser's cryptographically secure random number generator (crypto.getRandomValues), not a weaker pseudo-random function.

Are my generated passwords sent anywhere?

No. Everything happens locally in your browser — passwords are never transmitted or stored on any server.

What makes a password strong?

Unpredictability. The entropy figure measures it: every extra character, or every extra word in a passphrase, multiplies the work an attacker needs. Aim for 80 bits or more for important accounts.

Can I exclude ambiguous characters like 0, O, l, and 1?

Yes. Tick Avoid look-alikes to leave out 0 O 1 l I and similar characters, and you can type your own allowed symbols.

What's the maximum password length I can generate?

You can generate passwords well beyond typical requirements, though most sites cap accepted lengths, so check the target system's limit before using a very long one.

Does it guarantee at least one character from each selected category?

Yes. Every selected type is guaranteed to appear at least once, and the characters are then shuffled so the positions are unpredictable.

Is it better to use a long passphrase or a random password?

Both can be strong — a long random password packs more entropy per character, while a passphrase of several random words is easier to type and remember; this tool is built for the random-character approach.

Are the passwords biased or stored?

No. They use your browser's secure random generator with rejection sampling, so every character is equally likely, and they are never saved to your history or sent anywhere.

What is passphrase mode?

It joins random words from the EFF short wordlist (1,296 words). Each word adds about 10 bits, so a 6-word passphrase is roughly 62 bits and easy to remember and type.

Processed 100% locally in your browser

Password Generator

Create strong passwords and passphrases with live entropy and crack-time estimates — generated securely in your browser and never stored.

Quick Answer

Password Generator lets you: Create strong passwords and passphrases with live entropy and crack-time estimates — generated securely in your browser and never stored. To start, pick a random character password or a memorable word passphrase.

Loading tool…

How to use this tool

1
Choose password or passphrase
Pick a random character password or a memorable word passphrase.
2
Set the options
Choose the length and character types, avoid look-alikes, or set the number of words and separator.
3
Check the strength
See the entropy in bits and an estimate of how long a fast attack would take.
4
Copy it
Copy one result, or generate up to 20 at once and copy them all.

Frequently Asked Questions

Hash Generator

Generate MD5, SHA and CRC32 hashes of text or files and verify a checksum — processed 100% locally.

UUID Generator

Generate v4, v7 and v1 UUIDs in several formats, download them, and validate or inspect any UUID — 100% local.

Password Generator

How to use this tool

Choose password or passphrase

Set the options

Check the strength

Copy it

Frequently Asked Questions

Is this password generator secure?

Are my generated passwords sent anywhere?

What makes a password strong?

Can I exclude ambiguous characters like 0, O, l, and 1?

What's the maximum password length I can generate?

Does it guarantee at least one character from each selected category?

Is it better to use a long passphrase or a random password?

Are the passwords biased or stored?

What is passphrase mode?

Related Tools

Hash Generator

UUID Generator

Password Generator

How to use this tool

Choose password or passphrase

Set the options

Check the strength

Copy it

Frequently Asked Questions

Is this password generator secure?

Are my generated passwords sent anywhere?

What makes a password strong?

Can I exclude ambiguous characters like 0, O, l, and 1?

What's the maximum password length I can generate?

Does it guarantee at least one character from each selected category?

Is it better to use a long passphrase or a random password?

Are the passwords biased or stored?

What is passphrase mode?

Related Tools

Hash Generator

UUID Generator