Why it fits
It is licensed under GPL version 2 or, at your option, version 3. Desktop installs are free for private use; sync is optional and under your control.

Getting started
Prerequisites (from the official docs):
- A Windows, macOS or Linux computer
Steps:
- Download KeePassXC for your operating system from the official download page.
- Install it and create a new database with a strong master password.
- Optionally enable the browser integration and install the KeePassXC-Browser extension.
- Optionally sync the database file between devices with a file sync tool.
Official downloads: https://keepassxc.org/download/
Notes
Not a hosted password service. Browser integration and sync tools are separate choices.
