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Password Generator

Lifestyle Tools

Custom length, character sets and strength

Quick Answer

Password Generator: Custom length, character sets and strength. Password Generator uses standard everyday life formulas to compute accurate results instantly.

16

Strength: Excellent (104 bits entropy)

Weak <40
Fair 40-60
Strong 60-80
Excellent >80

Offline crack at 10¹⁰ guesses/sec: longer than universe age

Entropy103.6 bits
Charset size89
Crack timelonger than universe age

Most common passwords (never use)

RankPasswordCrack time
#1123456instant (dictionary)
#2passwordinstant (dictionary)
#3123456789instant (dictionary)
#5qwertyinstant (dictionary)
#8111111instant (dictionary)

💡 Generated with crypto.getRandomValues (CSPRNG) entirely in your browser — nothing is transmitted or stored. 80+ bits is safe for critical accounts; use a password manager to store unique passwords per site.

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How to Use

  1. Enter scenario values: fill real-life numbers into the Password Generator (defaults work for a quick try).
  2. Instant results: everything computes live, no button needed.
  3. Read the advice: results come with practical tips, reference standards and pitfalls.
  4. Compare options: adjust parameters to compare choices side by side.

Key Points

  • Password Generator is a free online everyday life tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Custom length, character sets and strength.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Password Generator formula

Password Generator uses standard everyday life formulas to compute accurate results instantly.

FAQ

How do I use the Password Generator?
Open the page and fill in the input fields — results update automatically. Custom length, character sets and strength.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on common formulas and industry conventions. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Password Generator[EB/OL]. https://www.yijiansuan.com/en/c/life/password

Results provided by this tool are for reference only and do not constitute professional advice.