About this tool
Password Generator is a free browser-based tool for creating strong random passwords with customizable length, character types, and security options. Passwords are generated locally in your browser and are not sent to a server.
Password Generator
Generate strong random passwords with customizable length, character sets, and security options.
Random Password Generator
Generate strong random passwords locally in your browser.
Browser-only
Adjust the length
characters
4326496128
Character types
Changing any option automatically generates a new password.
Advanced options
Password Strength
Estimated strength based on password length and character pool.
LengthChange
20
Characters
Character PoolChange
85
4 character types selected
StrengthStrength
Very Strong
Enter a valid length to generate a password
Estimated Entropy
Entropy is estimated from the password length and number of possible characters. It does not measure the actual randomness of a specific password.
128 bits
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Generate Strong Random Passwords
Create secure passwords with a customizable length from 4 to 128 characters. The generator can include uppercase letters, lowercase letters, numbers, and symbols based on your selected options.
A new password is generated automatically whenever you change the password length or character options, making it quick to create passwords that match different security requirements.
Customize Password Characters
Choose which character types should be included in your password. You can combine uppercase letters, lowercase letters, numbers, and symbols to increase the available character pool.
You can also exclude ambiguous characters such as I, l, 1, O, o, and 0 when creating passwords that need to be read or entered manually.
Password Security Options
The password generator can prevent repeated characters when the no-repeat option is enabled. This can be useful when passwords are subject to additional character requirements.
Password strength is estimated using password length and the size of the selected character pool. Longer passwords with more character types generally provide greater resistance to brute-force guessing.
Are Generated Passwords Stored?
No. Password generation happens entirely in your browser. Generated passwords are not uploaded to ToolTunnel or stored on a remote server.
For sensitive accounts, always follow the password requirements and security policies of the service where the password will be used. A password manager is recommended for securely storing unique passwords.
Frequently Asked Questions
▶How long should a password be?
Longer passwords are generally stronger. A password of at least 16 characters is a good starting point for many accounts, while longer passwords can provide additional protection against brute-force attacks.
▶Are the generated passwords secure?
The generator uses the browser's cryptographically secure random number generator to select password characters. Security also depends on using a sufficiently long password and keeping it unique to the account.
▶Are generated passwords sent to a server?
No. Passwords are generated locally in your browser and are not sent to ToolTunnel's servers.
▶Can I generate a password without symbols?
Yes. You can disable symbols and choose only the character types required by your target service.
▶Can I exclude confusing characters?
Yes. Enable the option to exclude ambiguous characters to remove characters such as I, l, 1, O, o, and 0 from generated passwords.
▶Can I generate passwords longer than 32 characters?
Yes. The generator supports password lengths from 4 to 128 characters.