Password Generator - Entropy

How strong is that password, really? See the bit-strength as you generate it. Choose length and character types, or try a memorable Diceware passphrase. Fully local.

Is that password actually strong? See it as a number, not a vague bar.

• Choose length and character types (upper/lower/digits/symbols) and generate instantly • See the actual entropy (in bits) calculated precisely • Also supports memorable word-based passphrases (Diceware method)

For anyone who wants a strong password fast when signing up for a new service, and wants to see strength as a real number. Generated passwords are never saved. Fully local generation — no network access, no storage.

A one-time ¥300 (or local equivalent) purchase. No in-app purchases.