How Strong Is Your Password?

Most passwords crack in minutes. Here's the math behind why.

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The Brute Force Numbers

  • 8 chars = 39 minutes
  • 10 chars = 7 months
  • 12 chars = 3,000 years
  • At 10B guesses/sec
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Length Beats Complexity

  • Each character = 6.5 more bits
  • 14 chars letters only > 12 chars mixed
  • Passphrases are long AND memorable
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Don't Use Math.random()

  • Predictable seed
  • Not cryptographically secure
  • crypto.getRandomValues() is the right choice
  • Hardware entropy sources
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Generate a Strong Password

Our generator uses crypto.getRandomValues() for real randomness. Free, local, no data sent.

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