Secure Password Generator
Generate cryptographically secure random passwords using Python's secrets module. No API keys, no external services, completely offline.
Features
- Cryptographically secure: Uses
secretsmodule (notrandom) - Customizable length: Default 16 characters
- Character types: Uppercase, lowercase, digits, special symbols
- Exclude similar characters: Remove 0, O, 1, l, I to avoid confusion
- Batch generation: Generate multiple passwords at once
- Pure standard library: Zero dependencies, works offline
Usage
# Generate a 16-character password (default)
python3 scripts/password_generator.py
# Generate a 20-character password
python3 scripts/password_generator.py 20
# Generate 10 passwords of 24 characters
python3 scripts/password_generator.py 24 10
# Exclude similar characters (0O1lI)
python3 scripts/password_generator.py 16 --exclude-similar
# Password without special symbols
python3 scripts/password_generator.py 16 --no-special
Examples
Generate a strong 20-character password
Generate 5 passwords of 16 characters each
Generate a password without special symbols for a website that doesn't allow them
Options
| Option | Description |
|---|---|
LENGTH |
Password length (default: 16) |
COUNT |
Number of passwords to generate (default: 1) |
--no-upper |
Exclude uppercase letters |
--no-lower |
Exclude lowercase letters |
--no-digits |
Exclude digits |
--no-special |
Exclude special symbols |
--exclude-similar |
Exclude 0, O, 1, l, I |
Security Notes
- Uses
secrets.choice()for cryptographically secure randomness - Suitable for generating passwords, API keys, tokens
- Not suitable for password hashing (use bcrypt/argon2 for storage)
中文说明
安全的随机密码生成器，使用Python标准库secrets模块，无需API Key。
- 默认16位强密码
- 支持自定义长度、字符类型
- 可排除相似字符（0O1lI）
- 支持批量生成