About Password Generator
Generate strong, secure passwords instantly with our free Password Generator. Create random passwords from simple 8-character codes to paranoid-level 64-character strings. Features entropy analysis, crack time estimation, and bulk generation. All passwords are generated locally in your browser - nothing is stored or transmitted.
How to Use
- 1Choose a security preset (Simple, Standard, Strong, Ultra, or Paranoid)
- 2Customize length and character types (uppercase, lowercase, numbers, symbols)
- 3Click "Generate" to create a new password
- 4View strength analysis and estimated crack time
- 5Copy to clipboard with one click
Key Features
- Five security presets from Simple to Paranoid
- Customizable length from 4 to 128 characters
- Include/exclude character types and specific characters
- Entropy calculation and strength scoring
- Crack time estimation using current computing power
- Bulk generation of multiple passwords at once
- Password history for current session
- Pronounceable password option for memorability
- Exclude ambiguous characters (0/O, 1/l/I)
Common Use Cases
Frequently Asked Questions
Are the generated passwords truly random?
Yes, passwords are generated using cryptographically secure random number generation (CSPRNG) provided by your browser's Web Crypto API.
Should I use the longest password possible?
Longer is generally better, but most security experts recommend 16-20 characters as a good balance. Beyond 32 characters provides diminishing returns for most use cases.
What is password entropy?
Entropy measures password randomness in bits. Each bit doubles the number of possible combinations. A 40-bit password has about a trillion possibilities, while an 80-bit password is practically uncrackable.
Privacy First
All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.
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