Penteract Password Manager™ is an offline password manager - keep your password on your devices, not in the cloud. No monthly charge.
Uses AES-256 encryption, and PBKDF2 with HMACSHA512 for password stretching. Unlocking speed (-"iteration-count") is user-set so that you can choose the best speed depending on your hardware and its usage.
Its built-in password creator creates passwords with over 115 bits of theoretical entropy ("theoretical" because of the limitations of non-quantum-based password generators et al.). And creates passphrases from more than 4096 words for over 12 bits of entropy per word (e.g. 60 for a 5 word passphrase).
With one click - the password is copied, and your web browser is launched to the appropriate website.