Strong Password Generator (Portable)

A simple, portable Windows app to generate strong passwords and passphrases locally (offline).

If you just want to use it, go to the Releases page of this repo and download the latest ZIP.

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What this app does

You can generate:

1) Passwords (characters)

• Choose length
• Choose sets: lowercase / uppercase / digits / symbols
• Use your own symbol list (supports \ / ! @ # $ % ^ & * and more)
• Options like “enforce 1 of each type”, “website-safe”, “exclude ambiguous”

2) Passphrases (words)

• Choose number of words (ex: 4–6)
• Choose a separator (ex: - or _)
• Optional random capitalization
• Optional append digits and/or one symbol
• Uses a wordlist.txt file (one word per line)

Everything is generated on your PC. No internet. No accounts.

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Quick start (users)

1) Download

1. Open the Releases page (right side on GitHub)
2. Download the latest ZIP
3. Extract it anywhere (Desktop is fine)

2) Run

Double-click:

• PasswordGen.exe

3) Generate + copy

• Pick Password or Passphrase
• Set your options
• Click Generate
• Click Copy to copy to clipboard

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Important: keep these files together

Inside the extracted folder you will see something like:

• PasswordGen.exe
• PasswordEngine.exe
• _internal\ (folder)
• wordlist.txt (optional but recommended)
• HELP.txt (optional)

Do not delete _internal\.
If _internal\ is missing, the engine can’t run and Generate may appear to “do nothing”.

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Recommended settings (practical)

Passwords (characters)

• General use: 16–24 characters
• Enable:
  • Lower + Upper + Digits
  • Symbols (if the website allows it)
  • Enforce 1 of each selected (helps with strict website rules)

If a website rejects your password:

• turn on Website-safe mode
• or remove specific symbols from the symbols box

Passphrases (words)

• Good default: 4–6 words
• Separator: - is easy to read and type
• For extra strength:
  • append 2 digits
  • append 1 symbol

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Wordlist (wordlist.txt)

Passphrase strength depends heavily on the size/quality of the wordlist.

Format:

• plain text
• one word per line

Example:

alpha
bravo
charlie
delta

Bigger list = stronger passphrases (thousands of words is ideal).

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Privacy & security notes

• Uses cryptographically secure randomness (CSPRNG) in the engine.
• Does not send data online.
• Does not store generated passwords.

Clipboard note:

• After you press Copy, the password stays in clipboard until you copy something else.
• If you want an “auto-clear clipboard after X seconds” feature, open an Issue.

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Troubleshooting

Generate does nothing / no output

Most common causes:

1. PasswordEngine.exe is missing
2. _internal\ folder is missing
3. Antivirus quarantined the engine

Fix:

• Make sure PasswordGen.exe, PasswordEngine.exe, and _internal\ are in the same folder.
• Check Windows Security → Protection history and restore files if quarantined.

Antivirus / SmartScreen warnings

Portable packaged apps can trigger false positives on some systems. If you downloaded from Releases:

• verify hashes (if provided)
• restore from Protection history if needed

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Questions / support

If you’re stuck, open an Issue and include:

• your Windows version (10/11)
• whether you use the x64 build
• the exact message shown in the app (if any)
• whether Windows Security quarantined anything