Password Strength Analyzer

A python GUI application for analyzing password strengths.

This Application is checking whether a password has appeared in known data breaches, using the Have I Been Pwned (HIBP) Pwned Passwords API.

The app now uses a tabbed layout to keep the interface focused:

• The Analyzer tab checks password strength, entropy, common password usage, and HIBP breach status.
• The Generator tab creates password candidates with configurable rules and quick actions.

• Live strength scoring while typing
• HIBP breach lookup with a background request indicator
• Recent analysis history with masked passwords
• Copyable analysis summary for quick sharing
• Dedicated Generator tab with configurable password options
• One-click actions to copy or analyze generated candidates
• Batch summary showing average score and the strongest generated password
• Copy Strongest action for the current generator batch
• Analyzer usage counter in the summary bar
• Double-click history entries to copy them
• Configurable generator batch size
• Copy Batch Summary action for generated candidates
• Remove Selected action for trimming the generated batch
• Clearer feedback when generator actions are used without a selection

• Score and strength update as you type.
• The checks table shows length, character variety, entropy, and common-password status.
• Recent analyses are stored as masked history entries.
• A copy button captures the latest summary, including the HIBP result.
• The summary bar also shows how many analyses have been run.
• Double-click a history entry to copy it back to the clipboard.
• Clearing history updates the analyzer hint line.

• Choose password length and the character sets to include.
• Set the batch size for each generation run.
• Optionally avoid ambiguous characters like 0, O, 1, l, and I.
• Generate five candidates at a time and inspect their strength scores.
• Auto-selects the strongest generated candidate and shows a batch summary with average score.
• Copy the selected candidate or the strongest candidate directly to the clipboard.
• Copy the batch summary as a quick status line.
• Remove individual candidates from the current batch when needed.
• Empty generator actions explain how to recover.

1. Open the Analyzer tab and type a password to review its score, recommendations, and HIBP status.
2. Use the Copy Summary button to grab a quick shareable result for the latest check.
3. Switch to the Generator tab to create new passwords with the options you want.
4. Copy a generated password, or send it back to the Analyzer tab for a full check.

Keyboard support:

• Enter runs the active tab action.
• Esc clears the analyzer screen.

• The app depends on the HIBP Pwned Passwords API for breach checks.
• The Generator tab relies on the built-in password generator module.
• Generated candidates are scored locally using the same analyzer logic as the main screen.

• UI theme consistency has been improved across tabs and summary panels.
• Minor readability cleanup was applied to the checks table setup.
• Several micro UI and documentation tweaks were made in small commits for clarity.

• June 2026: UI polish, generator tab refinements, logging and small helpers added.
• June 2026: Follow-up micro commits added tiny helpers and clearer notes.

• If HIBP lookups fail intermittently, enable debug logging to see network errors:

  import logging
  logging.basicConfig(level=logging.DEBUG)

  This will surface connection errors from the HIBP helper during local runs.

• Keep helper functions small and focused to make micro-commit reviews easier.

• Syntax check: python -m py_compile main.py analyzer.py hibp_checker.py password_generator.py