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Password Generator

Generate strong, secure passwords with custom length, characters, and complexity options.

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What is a Password Generator?

A password generator creates random, high-entropy passwords using a cryptographically secure random number generator (CSPRNG). Unlike human-created passwords that tend toward predictable patterns, generated passwords use the full character space — uppercase, lowercase, digits, and symbols — making them resistant to brute-force attacks, dictionary attacks, and credential stuffing. This tool uses your browser's built-in crypto.getRandomValues() API, which provides the same randomness quality used in TLS and encryption libraries. No passwords are ever transmitted over the network.

How to Use This Tool

  1. Configure your requirements: Set the password length (12-16+ characters recommended) and select which character types to include.
  2. Click "Generate" to create a new password instantly. The strength indicator shows how secure your configuration is.
  3. Copy and store securely: Use the Copy button and paste into your password manager. Use "Generate 10" for bulk creation when setting up multiple accounts.

Common Use Cases for Developers

  • Service account credentials: Generate strong passwords for database users, API keys, and CI/CD service accounts.
  • Development environment setup: Create unique passwords for local databases, admin panels, and test accounts.
  • .env file secrets: Generate random strings for SESSION_SECRET, JWT_SECRET, and encryption keys in environment configs.
  • User account registration: When testing auth flows, quickly generate passwords that meet your app's complexity requirements.
  • Team onboarding: Generate initial passwords for new team members' access to development tools and staging environments.

Tips & FAQ

  • Length matters most: A 20-character password with only lowercase letters (26^20 combinations) is stronger than an 8-character password with all character types (95^8). Prioritize length over complexity when both aren't restricted.
  • Always use a password manager: Generated passwords are impossible to memorize. Store them in a reputable password manager (1Password, Bitwarden, KeePass) and use a strong master password you can remember.
  • For API secrets and tokens: Consider using longer strings (32-64 characters) with alphanumeric characters only — this avoids shell escaping issues in environment variables and CI/CD configs while maintaining excellent entropy.