Password Generator
Generate strong, random passwords with custom length and character rules — instant, secure, and 100% private.
Character types
A–Z
a–z
0–9
!@#…
Removes l, I, 1, O, 0 that look alike
Why a Strong Password Matters More Than Ever
Data breaches expose billions of credentials every year. When a password database leaks, attackers run automated tools that crack short, predictable passwords in seconds using graphics-card clusters. A 6-character all-lowercase password has roughly 300 million combinations — modern hardware tests that in under a second. A 20-character password mixing uppercase, lowercase, numbers, and symbols has more combinations than there are atoms in the observable universe, making brute-force attacks effectively impossible.
How the Generator Works
This tool builds a character pool from the options you select and picks characters at random
using crypto.getRandomValues() — the same cryptographic API used by
banking and security software. Every character is chosen independently, so there are no
patterns, no dictionary words, and no predictable structure. The entropy is real.
- Length (4–128 chars) — drag the slider to your target length; 16 is a sensible minimum, 24+ is better for anything sensitive.
- Character types — mix uppercase, lowercase, digits, and symbols. Each additional character class multiplies the search space your attacker must cover.
- Exclude ambiguous characters — removes
l I 1 O 0so the password is easier to read back when typing manually. - Instant regeneration — click the refresh icon for a new password at any time, or adjust the options to regenerate automatically.
Reading the Strength Meter
The four-bar strength indicator scores based on two factors: length and character variety. A password scores higher when it reaches key length thresholds (8, 12, and 16 characters) and when it mixes at least three different character classes. A "Strong" rating reflects a combination of both — length alone without variety, or variety alone in a short password, will plateau at "Fair" or "Good". Aim for the green bar.
Common Use Cases
The most common use is creating a new account password to paste directly into a password manager. Other uses include generating temporary credentials for test environments, creating API tokens or secret keys for development projects, producing Wi-Fi passphrases you can share verbally (try enabling ambiguous-exclusion for these), and building random one-time tokens for system administration tasks.
Privacy by Design
Everything runs in your browser. There is no backend, no logging, and no telemetry on the passwords you generate. The page can be saved locally and used offline. The moment you close the tab, the generated password is gone — so copy it to a password manager before you navigate away.
Frequently Asked Questions
Is this password generator truly secure?↓
Yes. Passwords are generated using the Web Crypto API's crypto.getRandomValues(), which is cryptographically secure by specification. Unlike Math.random(), it cannot be predicted or seeded. No password is ever sent over the network — generation happens entirely inside your browser.
What password length should I use?↓
Security experts recommend at least 16 characters for general accounts and 20+ for high-value accounts like email and banking. Longer passwords exponentially increase the time required to crack them — a 16-character mixed-case password with symbols has trillions of possible combinations.
What does "exclude ambiguous characters" do?↓
It removes characters that look similar when printed or displayed in certain fonts: the letter l (lowercase L), I (uppercase i), 1 (the number one), O (uppercase O), and 0 (zero). This is especially useful when you need to read a password aloud or enter it on a device without copy-paste.
Can I use the same password on multiple sites?↓
No — reusing passwords across sites is one of the most common causes of account takeovers. If one site is breached, attackers try the same credentials everywhere else (credential stuffing). Use a unique password for every account and store them in a password manager.
Are my generated passwords stored anywhere?↓
Absolutely not. The generator runs entirely in your browser using JavaScript. Nothing is transmitted to any server, logged, or persisted. Once you close the tab the password is gone — which is exactly why you should copy it to a password manager immediately.