Password Generator
Free and no registration required. All generation is completed within the browser and is not sent to
server.
How to create a strong password (latest version)
Length is most important
The strength of a password depends most on its length. We recommend at least 12 characters, and ideally at least 16 characters. For each additional character, the number of attempts required to decode increases by a factor of 26 to 94 times the character set size.
Diversity of character types
If you include all four types: uppercase, lowercase, numbers, and symbols, there are 94 possible character types, maximizing entropy (unpredictability). Adding just one symbol can increase the decoding time by several dozen times.
Tips for generating random passwords
When creating passwords, avoid personal information completely and prioritize length. Utilizing an external tool to generate meaningless random strings will drastically reduce the risk of unauthorized access and data breaches.
How to Use
Set Requirements
Configure password length, character types (uppercase, lowercase, numbers, symbols), and exclusions.
Generate
Click the button to instantly create cryptographically secure passwords. Batch generation of multiple passwords is also supported.
Copy & Use
One-click copy to clipboard. Ready for use in password managers or account registrations.
Glossary
- Password Generator
- A tool that automatically creates strong, random passwords based on specified criteria (length, letters, numbers, symbols). Using a reliable password generator is essential for modern cybersecurity and account protection.
- Passphrase
- A passphrase is a long password made up of multiple words. Example: Sakura-Kumo-Kaze-Umi (20 chars). It has the same or higher entropy as a typical 16-character random password, but is much easier to remember.
- Brute-force Attack
- A cyberattack method that systematically tries all possible combinations of characters until the correct password is found. You can completely neutralize this attack simply by ensuring your generated password is long enough (16+ characters).
- Dictionary Attack
- An attack method that uses lists of common words from dictionaries or previously breached passwords (like '123456' or 'password'). Using a password generator to create a meaningless random string is the perfect defense against this.
- Entropy
- An indicator showing the 'unpredictability' and degree of randomness of a password. A password with high entropy is extremely difficult to guess or crack.
- Hashing
- The process of converting a password into a scramble of characters that cannot be reversed. Secure websites do not store your actual password; they only store the hashed version.
- Salt
- Random data added to a password before it is hashed. This ensures that even if two users have the same password, their hashes will look completely different, making attacks much harder.
FAQ
- Q.How many characters is a safe password?
- NIST recommends prioritizing length. Minimum 12 chars, ideally 16+.
- Q.Are passwords generated by this tool safe?
- Yes. Uses browser crypto.getRandomValues() for secure random generation.
- Q.Which symbols should I include when generating a password?
- Including symbols like hyphens (-), underscores (_), and exclamation marks (!) significantly improves password strength. If the system permits, we recommend enabling all symbol options during automatic generation for maximum security.
- Q.How should I safely manage my generated passwords?
- We strongly recommend using a password manager (like 1Password, Bitwarden, Apple Keychain, or Google Password Manager). You won't need to memorize complex random passwords, which drastically improves your security experience.
- Q.Should I change my passwords regularly?
- No. Modern security guidelines (such as those from NIST) advise against routine password changes. Unless you suspect a breach, it is much safer to generate one very strong, long password and stick with it.
- Q.Is it secure to use free password generation tools?
- As long as the tool operates entirely within your browser and does not send data to any servers (like this offline-capable tool), it is completely safe. You can verify this by turning on airplane mode while using it.
- Q.What does 'offline-capable' mean?
- It means the password generation happens entirely locally on your device. Since no data is transmitted over the internet, there is zero risk of your generated password being intercepted.
Use Cases
Account Registration
Instantly generate strong passwords when signing up for social media, email, or banking services.
Bulk Business Passwords
Generate initial passwords for employee accounts in compliance with security policies.
Regular Password Rotation
Create unique strong passwords each time security policies require password changes.
Device & Wi-Fi Setup
Generate secure passwords for Wi-Fi routers, device locks, and PIN codes.