Password Safe is a free, open-source password manager that keeps user names and passwords in a single encrypted list, unlocked with a master password. It was designed by Bruce Schneier, who started the project at Counterpane Systems; the first release came out in 2002. The official version is available for Windows (10 and later), macOS and Linux, with packages for popular distributions, and for FreeBSD. The site also mentions two-factor authentication with a YubiKey. Third-party Android, iOS and Mac apps that use the same file format are listed on the site as clones.
Password Safe is a local application with no hosted service: your vault is a file that you store and synchronise yourself. The software is licensed under the Artistic License 2.0 and maintained by volunteers on GitHub; no company or parent company is named. Downloads are offered through GitHub and SourceForge, platforms that fall under US jurisdiction.