Password Generator
Generate strong, random passwords
Click to copy
What it does: Generate strong, random passwords. This free online tool works entirely in your browser with no installation required.
How to use:
- Drag the slider or type a number to set your desired password length.
- Toggle uppercase, lowercase, digits, and symbols to control password complexity.
- Click Generate to create a new password, then click Copy to save it to your clipboard.
Privacy: All processing happens in your browser. No data sent to servers.
Best for: Anyone who needs quick Password Generator without installing software.
Creating Strong Passwords
A strong password is your first line of defense against unauthorized access to your accounts. Modern password cracking tools can try billions of combinations per second, making short or predictable passwords vulnerable to brute-force attacks. This generator creates cryptographically secure random passwords using your browser's built-in crypto.getRandomValues() API — no data is sent to any server.
What Makes a Password Strong
- Length matters most — Each additional character exponentially increases the number of possible combinations. Aim for at least 16 characters for important accounts. A 20-character password with mixed characters is practically uncrackable.
- Use all character types — Mix uppercase, lowercase, digits, and symbols to maximize the character pool. More possible characters per position means exponentially harder cracking.
- Entropy is key — Password strength is measured in bits of entropy. This tool shows your password's entropy score. Aim for 80+ bits for strong security. Each bit doubles the difficulty of cracking.
- Avoid patterns — Do not use keyboard patterns (qwerty), sequential numbers (123456), common words (password), or personal information (birthdays, names).
Password Security Best Practices
- Use a unique password for every account. Never reuse passwords across different services.
- Use a password manager (1Password, Bitwarden, LastPass, or KeePass) to store and generate strong passwords.
- Enable two-factor authentication (2FA) wherever possible for an additional layer of security.
- Change passwords immediately if you suspect an account has been compromised.
- Consider using passphrases (random words strung together) for memorable but secure master passwords.