ToolsSecurity & Identity

Private security & identity tool

Password Guess Time Calculator

Estimate password guess counts, attack times, detected patterns, and targeted improvement advice locally with zxcvbn.

Free to use Your source stays in this browser and is never uploaded to Lucaden by this tool.

Loading tool workspace…

How it works

Complete the job in three clear steps

  1. Add a password and optional personal words to penalize to the local workspace.
  2. Choose the relevant settings and create a conservative strength and guess-time report.
  3. Review the result carefully, then copy or download it before leaving the page.

Important

Check the result before relying on it

Use these utilities for development, learning, and local checks. Do not treat a browser tool as a replacement for audited identity systems, password managers, production key management, or server-side authentication controls.

Practical details

What this Lucaden tool does

Estimate password guess counts, attack times, detected patterns, and targeted improvement advice locally with zxcvbn.

Every crack-time figure is an estimate based on assumed attack rates. It is not a breach check or a guarantee; use unique passwords, a password manager, and MFA.

Lucaden supplies the interface and focused workflow while preserving upstream attribution and license notices.

Included capabilities

  • Pattern-aware estimation
  • Four attack scenarios
  • Personal-word penalties
  • No password transmission

Useful for

  • Review a new passphrase
  • Compare password candidates
  • Teach pattern weaknesses
  • Improve account-password policy

Questions

About this tool

Does Lucaden upload my source?

No. The pinned open-source runtime executes in temporary browser memory, and this tool has no upload step.

What should I verify?

Every crack-time figure is an estimate based on assumed attack rates. It is not a breach check or a guarantee; use unique passwords, a password manager, and MFA.

Which open-source project powers this tool?

The implementation uses zxcvbn (MIT runtime 4.4.2). Upstream projects retain their original names, copyrights, and licenses.

Open-source foundations

Built transparently

Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.