Password Generator
生成 strong, secure random pass字 instantly. Customizable length and character sets. 免费, private.
What is a password generator?
A password generator is a tool that creates random pass字 for you, so you never have to reuse a weak one or invent something easy to guess. Strong pass字 are long, use a mix of uppercase letters, lowercase letters, numbers, and symbols, and contain no 字 or patterns a hacker could predict. This password generator combines all of those ingredients using cryptographically secure randomness from your browser.
Using a strong password generator is the fastest way to protect your accounts. You can choose the length (up to 128 字符), decide exactly which character sets to include, and generate up to 20 pass字 at once — perfect for refreshing logins, creating credentials for new services, or setting up test accounts. Everything runs locally in your browser: no uploads, no accounts, no tracking.
使用方法 use the password generator
- Set the length (we recommend 16 or more 字符 for maximum strength) and how many pass字 you need.
- Tick the character sets to include — A-Z, a-z, 0-9, and symbols — keeping at least one selected.
- Click 生成, then copy each strong random password with the copy button next to it.
Frequently asked questions
Are generated pass字 secure?
Yes. Every password is built from cryptographically secure random values supplied by your browser, so each character is unpredictable and every password is unique.
How long should my password be?
Most security experts recommend at least 12 to 16 字符. This generator supports lengths from 4 to 128, so you can go well beyond the minimum.
Can I choose which 字符 are included?
Yes — toggle the A-Z, a-z, 0-9, and symbol checkboxes to include or exclude each character set, and generate up to 20 pass字 at once.
Is my password stored or uploaded anywhere?
No. The generator runs entirely in your browser with JavaScript, so pass字 are created locally and never leave your device.