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All ToolsPassword Generator
Password Generator
Generate secure random passwords using the Web Crypto API. Customize length and character sets.
What is Password Generator?
Password Generator is a free online tool that creates cryptographically secure random passwords using the browser's crypto.getRandomValues API. Customize length, character sets, and generate multiple passwords at once.
How It Works
The tool builds a character pool based on your selected options, then uses crypto.getRandomValues() to fill a Uint32Array with random bytes. Each random value is mapped to a character in the pool using modulo. This ensures cryptographically strong randomness.
Key Benefits
- Uses crypto.getRandomValues for true randomness
- Customizable length from 8 to 128 characters
- Toggle uppercase, lowercase, numbers, and symbols
- Exclude ambiguous characters (0, O, l, 1, I)
- Generate 1–20 passwords at once and copy all
Frequently Asked Questions
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