SECURITY

密码强度检测

测试密码强度和熵值分析

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密码强度检测。测试密码强度和熵值分析

完全在浏览器本地运行。

功能特点

Real-time entropy calculation

Crack time estimate (from seconds to centuries)

Character class analysis

Color-coded strength bar

Improvement suggestions

使用方法

提示

所有操作在浏览器本地完成。

Type or paste a password

Watch the strength meter update

Read the entropy and crack time

Follow suggestions to improve

使用场景

Testing passwords before using them

Security training demos

Compliance password policy checks

Comparing password strategies

常见问题

Never. All calculation happens in your browser. Open DevTools network tab and verify — zero requests.

Most meters only check character variety. We measure actual entropy — a more honest metric.

80+ bits is strong. 60-80 is okay. Below 60, attackers with GPUs can crack it in hours.

Not currently — that would require a server call. Consider Have I Been Pwned for that.

At equal entropy, yes — they are easier to remember. A 5-word passphrase often beats a 10-char random string.

Based on 10 billion guesses/second (a realistic GPU cluster speed) against the entropy of the password.

技术细节

实现

基于现代 Web API，纯客户端运行

隐私

数据不离开浏览器

性能

多数操作毫秒级完成

NEXT STEPS

密码强度检测

密码强度检测。测试密码强度和熵值分析

功能特点

Real-time entropy calculation

Crack time estimate (from seconds to centuries)

Character class analysis

Color-coded strength bar

Improvement suggestions

使用方法

提示

使用场景

Testing passwords before using them

Security training demos

Compliance password policy checks

Comparing password strategies

常见问题

技术细节

实现

隐私

性能

相关工具

JWT Token 解析

密码生成器

Hash 生成器

加密工具

密码强度检测

密码强度检测。测试密码强度和熵值分析

功能特点

Real-time entropy calculation

Crack time estimate (from seconds to centuries)

Character class analysis

Color-coded strength bar

Improvement suggestions

使用方法

提示

使用场景

Testing passwords before using them

Security training demos

Compliance password policy checks

Comparing password strategies

常见问题

技术细节

实现

隐私

性能

相关工具

JWT Token 解析

密码生成器

Hash 生成器

加密工具