Strong Random Password Generator

About this tool

Generate cryptographically secure, random passwords instantly. Choose your length (up to 128 characters), mix uppercase, lowercase, numbers, and symbols, and instantly see the strength rating. All passwords are generated locally in your browser — never transmitted online.

How we calculate this

All calculations run entirely in your browser — no data is sent to any server. Here is exactly how this tool works:

1. Set your desired password length using the slider (6–128 characters)
2. Choose which character types to include: uppercase, lowercase, numbers, symbols
3. Optionally exclude ambiguous characters (0, O, I, l) for better readability
4. Click Generate to create passwords and view their strength rating
5. Click Copy next to any password to copy it to your clipboard