Advanced Password Generator

Summary

A fully client-side password generator that lets you control every aspect of password composition: length (8-128), character classes (uppercase, lowercase, digits, symbols), custom character sets, exclusion of ambiguous or similar-looking characters, minimum counts per class, and entropy bits — so you always know how strong your password really is.

How it works

1. Set length (8-128) and pick the character classes you want (uppercase, lowercase, digits, symbols).
2. Optionally add a custom set, exclude ambiguous characters, or require per-class minimums.
3. The tool draws characters from crypto.getRandomValues(), seeds required classes first, then fills and Fisher-Yates shuffles the rest.
4. Entropy is shown as log2(pool_size ^ length) so you can judge strength before copying.

Use cases

• Generate high-entropy passwords for new account registrations.
• Create passwords that meet strict corporate policy requirements (e.g. minimum 2 digits + 2 symbols).
• Avoid visually ambiguous characters (0, O, I, l) when passwords must be typed manually.
• Produce a batch of unique passwords for bulk account seeding.
• Quickly audit password strength by checking entropy bits before committing to a password.

Frequently Asked Questions