About passtsuku.com

Our Mission

passtsuku.com is a free web tool that makes it easy for anyone to create secure passwords. Our goal is to help you generate passwords for the various online services you use, quickly and with a high level of security.

How Secure Password Generation Works

passtsuku.com generates passwords using cryptographically secure random numbers that are extremely difficult to predict. Unlike common pseudo-random number generators, this fundamentally different mechanism ensures the generation of high-quality passwords that are resistant to guessing.

Privacy Protection Through Browser-Only Processing

All password generation processing is completed entirely within your browser. Generated passwords are never sent to any server. Since no network communication is involved, there is no risk of password leakage through interception, so you can use the tool with confidence.

Key Features

Character Type Customization

You can generate passwords using any combination of uppercase letters, lowercase letters, digits, and symbols. You can also select only the character types required by the service you are signing up for.

Strength Visualization

You can check the strength of generated passwords in real time. Based on the combination of character count and character types, you can visually assess how secure a password is, making it easier to choose one with appropriate strength.

Bulk Generation

You can generate multiple passwords at once. This is convenient when you need to set different passwords for multiple accounts.