Security Tools
Password generators and strength checkers — all in your browser.
Free Security Tools — browser-based and private
Every tool in Security Tools runs in your web browser when possible, so files and text stay on your device. Pick a utility below, read the guide on each tool page, and use related links to move between similar features. No account is required to start.
Tools Directory
01. 密码生成器
免费 密码生成器 在线.
02. Password Strength Checker
免费 Password Strength Checker 在线.
Security tools help you generate strong passwords and check strength using rule-based analysis in the browser. We never store passwords or send them to a server.
Use these utilities when creating accounts, rotating credentials, or teaching safe password habits—without relying on paid breach databases.
What you can do here
- Cryptographically random password generation
- Local-only strength scoring
- Customizable length and character sets
- No account or tracking
Frequently Asked Questions
Are generated passwords stored?
No. Passwords exist only in your browser session until you navigate away or clear the field.