Password Generator
Generate strong, cryptographically secure passwords. Customize length and character sets. Zero server contact.
What is a Password Generator?
A password generator creates random, unpredictable passwords using a cryptographically secure random number generator (CSPRNG). Strong passwords are the first line of defense against unauthorized account access — they are long, mix character types (uppercase, lowercase, numbers, symbols), avoid dictionary words, and are unique for every account. This tool generates passwords of configurable length (up to 128 characters) using the browser's crypto.getRandomValues() API. The generated password is never transmitted to any server — it exists only in your browser.
How to use this tool
- Set the desired password length using the slider or input field (recommended: at least 16 characters).
- Choose which character sets to include: Uppercase (A–Z), Lowercase (a–z), Numbers (0–9), Symbols (!@#$...).
- Click Generate to create a new password.
- Click the Copy button to copy the password to your clipboard.
- Generate multiple passwords if you need options to choose from.
Common use cases
- Creating a unique strong password when signing up for a new online service
- Replacing weak or reused passwords in existing accounts during a security audit
- Generating temporary passwords for new user accounts in a system you manage
- Creating API keys or secret tokens for development and testing
- Generating passphrases or PIN codes for applications with specific character requirements
Frequently asked questions
- How long should my password be?
- Security experts recommend passwords of at least 16 characters for regular accounts, and 20+ characters for high-value accounts (email, banking, password manager master password). Longer passwords are exponentially harder to crack through brute force.
- Is it safe to use a password generated by a website?
- This tool generates passwords entirely in your browser using the Web Crypto API — no generated password is ever transmitted to our servers. However, you should use a reputable password manager (Bitwarden, 1Password, KeePass) to store generated passwords, never type them in front of others, and never email or share them via chat.
- Why should I use a different password for every account?
- Password reuse is one of the most dangerous security habits. When any one service is breached (which happens frequently), attackers use "credential stuffing" to automatically try your email and password combination across thousands of other sites. Unique passwords per account contain the damage.
- What characters are included in the symbols set?
- The symbols set typically includes: ! @ # $ % ^ & * ( ) _ - + = [ ] { } | \ : ; " ' < > , . ? / ~ `. Some services restrict which symbols are allowed — exclude symbols if you encounter issues on a specific site.