Turn a passphrase into a strong secure password - Passera
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.
Passwords created with Passera are extremely difficult to bruteforce and impossible to revert back to the original regardless of attacker's knowledge of the source code. This software is for privacy-aware people that understand the need to have strong unique passwords for each website, yet don't want to use any password managing software or services.
Download the tool from here - https://github.com/mwgg/passera