General
Password Generator
Generate secure, random passwords with customizable options for length and complexity.
Configure options and generate a password
Related to Password Generator
Our password generator creates strong, random passwords using cryptographically secure random number generation. The generator combines different character sets based on your selected options: uppercase letters (A-Z), lowercase letters (a-z), numbers (0-9), and special symbols (!@#$%^&* etc.). The process ensures that:
Secure Random Generation
We use the Web Crypto API's cryptographically secure random number generator (crypto.getRandomValues) instead of Math.random() to ensure true randomness and security against prediction attacks.
Character Distribution
When multiple character types are selected, the generator ensures at least one character from each selected type is included in the password. The final password is then shuffled to prevent predictable character positioning.
Creating strong passwords is essential for protecting your online accounts. Here are key principles for password strength and security:
Length and Complexity
Use passwords that are at least 12-16 characters long. Longer passwords are exponentially harder to crack. Combine multiple character types to increase complexity and entropy.
Uniqueness
Use different passwords for different accounts. If one account is compromised, others remain secure. Consider using a password manager to help manage multiple unique passwords.
1. How secure are the generated passwords?
The passwords generated are highly secure due to the use of cryptographically secure random number generation (CSPRNG) through the Web Crypto API. This ensures true randomness and unpredictability, making the passwords resistant to brute force and pattern analysis attacks.
2. What is the ideal password length?
While our generator allows lengths from 8 to 128 characters, we recommend using at least 16 characters for optimal security. This provides a good balance between security and usability. For critical accounts, consider using even longer passwords.
3. Why include multiple character types?
Using multiple character types (uppercase, lowercase, numbers, symbols) increases the password's entropy and complexity. This makes the password more resistant to dictionary attacks and meets common password requirements for various services.
4. Are the generated passwords stored anywhere?
No, the passwords are generated entirely in your browser and are not stored or transmitted anywhere. Once you leave or refresh the page, the generated password is permanently deleted from memory. We recommend copying and storing the password in a secure password manager immediately after generation.
5. What is the scientific source for this calculator?
This password generator is built on established cryptographic principles and security standards. It uses the Web Crypto API's cryptographically secure random number generator (CSPRNG), which is standardized by the W3C Web Cryptography API specification. The implementation follows NIST Special Publication 800-63B Digital Identity Guidelines for password security and entropy requirements. The character set selection and minimum length requirements are based on research from the National Institute of Standards and Technology (NIST) and the Center for Internet Security (CIS) password policy guidelines.