Developer Tools

Password Generator

Create strong, unique passwords securely on your device. Your input stays in this browser during processing.

Private local processing

Your text and settings stay in this browser.

About Password Generator

Generate a strong, unique password locally with precise control over length and character types.

Passwords are generated with the browser's cryptographically secure random number generator. Nothing is uploaded, stored, logged or added to analytics.

What the result contains

A cryptographically random password generated only in this browser tab, with an estimated entropy and an easy-to-read strength rating.

Available options

  • 4–128 characters
  • Uppercase and lowercase letters
  • Numbers
  • Symbols

How to use Password Generator

  1. Choose a length; 16 characters is the balanced default and longer is stronger.
  2. Keep at least one character group enabled and optionally exclude similar characters, ambiguous symbols or immediate repeats.
  3. Regenerate until the result fits the destination's password rules, then copy it with the compact Copy button.
  4. Save the password in a reputable password manager. Refreshing or closing this page clears the generated value.
Practical example

For a new account, keep all four character types enabled and use at least 16 characters. Copy the result directly into a password manager so you do not need to simplify or reuse it.

When to use Password Generator

  • Create a unique password for a new account
  • Replace a reused or weak password
  • Generate a long credential for a password manager

Important limitations

  • Some websites restrict which symbols they accept
  • The entropy value estimates the size of the possible character space; it is not a guarantee against account compromise

Troubleshooting Password Generator

A website rejects the password

Check that site's length and symbol rules, disable ambiguous symbols if needed, then generate a fresh password instead of editing the existing one into a predictable pattern.

Private local processing

The text and settings are processed on this device and are not uploaded to MyFileNest. Closing or refreshing the page clears the active session.

Frequently asked questions

Practical limit: Passwords can contain 4–128 characters. Confirm the destination website accepts your chosen length and symbols before saving the result.