Security tool
Password Generator
Generate strong, random passwords in your browser. Choose a length and get a password built from a mix of letters, numbers, and symbols — created entirely on your device.
Generation uses the browser's built-in cryptographically secure random source, and the password never leaves your machine.
Privacy & data handling
Browser processingThis tool processes your input locally in your browser. Nothing is uploaded to a server or sent to an external service.
Interactive tool
Password Generator
Overview
What does Password Generator do?
This tool generates random passwords of the length you choose, drawing from a character set of uppercase and lowercase letters (minus easily-confused ones), digits, and symbols.
The strength of a generated password comes from its randomness: every character is chosen independently using a cryptographically secure random number generator — the same kind of randomness used in encryption — so the result cannot be predicted or guessed.
You can set the length (8 characters minimum by default, longer if you want more strength). The generated password appears in the result area ready to copy into a password manager or signup form.
Under the hood
How does it work?
The tool uses crypto.getRandomValues to obtain true random bytes from the browser's secure random source, then maps those bytes onto the character set to build the password.
Because the randomness is cryptographically secure, the output is genuinely unpredictable — not a pattern a human or a program could anticipate. The entire process runs locally; no request is made to any server.
The generated password is shown on screen for you to copy. It is not stored anywhere, and nothing is retained after you close the tab.
Key features
Features of Password Generator
Use cases
When should you use Password Generator?
New account signups
Generate a strong password when creating accounts, then save it in your password manager.
Rotating weak passwords
Replace reused or weak passwords on important accounts with fresh random ones.
Service credentials
Create strong credentials for databases, servers, and API keys.
Test data
Generate realistic random passwords for test fixtures and demos.
Step-by-step
How to use Password Generator
- Step 1
Set your desired password length.
- Step 2
Select which character types to include.
- Step 3
Copy your generated password.
Real example
Example
Your input
Length: 16
Generated password
qF7!mK2@pL9#zR4&w
Each run produces a fresh random password. Length is configurable.
Technical information
How the details work
Password strength is a function of entropy — the number of possible combinations an attacker must search. A longer password with a larger character set has exponentially more combinations: each additional character multiplies the search space by the size of the character set.
The character set here excludes easily-confused characters (like 0/O and 1/l) to keep the password practical to read and type, while still offering a large set of options.
Two practical notes. First, length beats complexity: a long password of lowercase letters is harder to crack than a short one full of symbols. Second, no matter how strong a password is, it is only as safe as how it is stored and reused — a strong unique password per account, kept in a password manager, is the gold standard.
Privacy & security
Your data stays yours
Your password is generated entirely in your browser. It is never sent anywhere or stored.
Local processing — files stay in your browser
- Generation uses the browser's crypto API locally — no network request.
- The password is never transmitted, logged, or stored.
- Nothing is retained after you close the tab.
- Analytics only record the page visit.
Limitations
What this tool does not do
- The password must be saved by you — the tool does not store it anywhere.
- Length is configurable, but the character set is fixed.
- A strong password alone does not protect against phishing or password reuse.
- For maximum security, pair generated passwords with a password manager.
Frequently asked questions
Common questions about Password Generator
How strong should my password be?
Aim for at least 12–16 characters with a mix of character types. Because each character multiplies the search space, longer passwords are dramatically harder to crack than shorter ones with more symbols.
Is the generated password random?
Yes — it uses the browser's cryptographically secure random number generator, the same source behind encryption. The output cannot be predicted or guessed.
Where is my password stored?
Nowhere. The password is generated locally, shown on your screen, and never transmitted or stored. Saving it is up to you — a password manager is the recommended place.
Why are some characters missing from the set?
Easily-confused characters (like 0/O and 1/l) are excluded so the password is practical to read and type without ambiguity.
Can I use this for my most important accounts?
Yes, with the right habits: generate a strong, unique password per account and store it in a password manager. A strong password reused across sites is still vulnerable to credential-stuffing attacks.
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