A simple open source (GPLv3) tool that allows users to have strong unique passwords for each website, without the need to store them either locally or with an online service. It is available as a Firefox extension, a command-line tool for Linux/Mac/Windows and an Android app.
Figure out a decent system for yourself that will allow unique passphrases for every website, such as combining website name/URL with a phrase that you would not forget, and Passera will turn that into a secure password up to 64 characters long.
This software is for privacy-aware people who understand the need to have strong unique passwords for each website, yet don't want to use any password managing software or services. Relying on password managing software means trusting your passwords to be kept safe by a third-party company, or trusting them to a single file on your disk.