StackDevLife

Developer Tool

Password Generator

Generate cryptographically secure random passwords. Customise length, character sets, and quantity. Everything runs in your browser via the Web Crypto API — nothing is ever transmitted.

Generator Options

16 chars
6163264

100% secure & private. All passwords are generated using the browser's crypto.getRandomValues() API — cryptographically secure randomness. Nothing is ever sent to a server or logged anywhere.

How to use this tool

  1. 1

    Set your length and character options

    Drag the length slider or pick a quick preset (8, 12, 16, 24, 32, 64). Toggle uppercase, lowercase, numbers, and symbols to match the site's requirements. Enable 'Exclude Ambiguous' if you'll be reading the password aloud.

  2. 2

    Check the strength indicator

    The strength bar shows entropy in bits. Aim for 'Strong' (70+ bits) or 'Very Strong' (100+ bits) for any important account. A 16-character password with all character sets is Very Strong.

  3. 3

    Copy and store securely

    Click the copy icon next to any password, or use 'Copy all' to grab multiple at once. Store passwords in a password manager — never in plain text files or spreadsheets.