Secure Password Generator
Generate strong, random passwords instantly in your browser. Choose length (8–64 chars), character types, and copy in one click. 100% local — no data ever leaves your device. Free, no sign-up required.
🔒 Generated locally in your browser — never sent to any server
Generate Multiple Passwords
How to Generate a Strong Password
- Set your desired password length using the slider (16+ recommended).
- Choose which character types to include (uppercase, lowercase, numbers, symbols).
- Click "Generate Password" to create a cryptographically random password.
- Click "Copy" and paste it directly into your password manager.
Why Strong Passwords Matter
Weak or reused passwords are the #1 cause of account breaches. According to the 2024 Verizon Data Breach Investigations Report, over 80% of hacking-related breaches involve compromised or weak credentials. A randomly generated 16-character password with mixed character types would take modern hardware billions of years to crack by brute force.
Unlike human-created passwords, which tend to follow predictable patterns (words, dates, keyboard
walks like "qwerty123"), a cryptographically random password has no pattern at all. Our generator
uses crypto.getRandomValues() — the same API used
by browser security systems — to ensure true randomness.
The golden rule: one unique random password per site, stored in a password manager. Never reuse passwords. If one site is breached, all your other accounts stay safe.
Frequently Asked Questions
Is this password generator safe to use? ▼
Yes. All passwords are generated directly in your browser using the Web Crypto API (crypto.getRandomValues). No password is ever transmitted to or stored on any server. The page works fully offline once loaded.
How does a random password generator work? ▼
The generator uses your browser's built-in cryptographically secure random number generator (crypto.getRandomValues) to pick characters from your selected character set. This is the same standard used by security software and is far stronger than Math.random().
How long should my password be? ▼
Security experts recommend at least 16 characters for most accounts. For highly sensitive accounts (banking, email), 20+ characters with mixed character types is ideal. Our tool defaults to 16 characters.
What makes a strong password? ▼
A strong password is: long (16+ characters), random (not based on words or patterns), uses a mix of uppercase, lowercase, numbers, and symbols, and is unique (never reused across sites). This generator creates passwords meeting all four criteria.
Should I use uppercase, lowercase, numbers, AND symbols? ▼
Yes — using all four character types dramatically increases the number of possible combinations. A 16-character password with all types has approximately 10^29 possible values, making brute-force attacks computationally infeasible.
What are ambiguous characters and why exclude them? ▼
Ambiguous characters are visually similar pairs: 0 (zero) and O (letter), 1 (one) and l (lowercase L) and I (uppercase i). Excluding them makes passwords easier to read and type manually, at a slight reduction in entropy.
How do I store the generated password securely? ▼
Never store passwords in plain text (notes app, email, spreadsheet). Use a password manager like Bitwarden (free, open source), 1Password, or KeePass. Copy the generated password directly into your password manager.
Can I generate multiple passwords at once? ▼
Yes — click "Generate 10" below the main generator to create 10 unique passwords at the same length and character settings. Each has its own copy button.
Does this tool save or log my passwords? ▼
No. The tool runs entirely in your browser. There is no backend, no database, and no analytics capturing what passwords are generated. You can verify this by inspecting the page source or running it offline.
What is the maximum password length? ▼
You can generate passwords up to 64 characters long using the slider. For most use cases, 16–24 characters provides excellent security without being too long to paste.