1 Length and characters 2 processed on your device 3 Strong passwords
Password & Passphrase Generator
Settings
Made with your device's secure random generator (crypto.getRandomValues), with no bias. Nothing is stored or sent.
Passwords
All of them
01
What it does
Makes strong random passwords or memorable passphrases on your device, with the strength shown in bits.
Up to 128 characters from the sets you choose
Memorable passphrases from a built-in word list
Look-alike characters left out if you like
Strength in bits and an estimated cracking time
02
Private by design
Everything happens in your browser. Nothing you type, paste or upload is sent anywhere, and it keeps working offline once the page has loaded.
03
What you get
A list of passwords, with a Copy and a Download button on every result.
Passwords
Security
Passphrase
Why it matters
Website projects create passwords constantly: hosting, databases, CMS admins, FTP and client accounts. Reused or guessable passwords are still the most common way small business sites get hacked.
A password manager is the best answer, and this generator suits it: long random passwords, or passphrases when you need to type one. They're made with crypto.getRandomValues on your device and never leave it.
How it works
InputLength, character sets or word count
In your browserUnbiased picks from crypto.getRandomValues
OutputPasswords or passphrases with their strength
Where it fits in a designer's workflow
Plan
Design
Build
Test
Launch
Setting up hosting, CMS and client accounts.
By the numbers
Computed as length × log2(pool size), the same maths the generator shows. The passphrase rows use its own 550-word list. Each extra bit doubles the guesses needed; length matters more than symbols. Source: NCSC: three random words; NIST SP 800-63B.Show the numbers as a table
Setting
Bits of entropy
0 to 9, 6 chars
19.9
a to z, 8 chars
37.6
Letters + digits, 12 chars
71.5
Letters, digits, symbols, 16 chars
103.9
Letters, digits, symbols, 20 chars
129.8
4 random words (550-word list)
36.4
5 random words (550-word list)
45.5
6 random words (550-word list)
54.6
How to use it
Choose random characters or a passphrase.
Set the length and the character types or the number of words.
Press Generate new.
Save the one you use in a password manager.
FAQ
How long should a password be?
At least 16 random characters, or six random words. That's beyond any realistic guessing attack.
Are passphrases really as strong?
Each word adds bits equal to log2 of the list size; the strength meter shows the exact total. Six or more words, plus a number, is very strong.
Is this safe to use online?
The passwords are made in your browser and aren't sent or stored. The page works offline once loaded, if you'd rather disconnect.
Why avoid look-alike characters?
So a password can be read aloud or typed from paper without mixing up 0 and O or 1 and l.
I build fast, accessible websites and web apps that pass these checks from day one. Tell me about your project and I'll reply personally with honest next steps.
