.kdbx file: how to open it on Windows

2 Windows apps register the .kdbx extension. Install one of them to open the file with a double-click.

• 
  KeePassXC

  KeePassXC is a cross-platform community-driven port of the Windows application “Keepass Password Safe”.

  Open source 2.8.0 849.8K ↓ ★ 29.4K
• K
  KeePass

  KeePass, the free, open source, light-weight and easy-to-use password manager.

  Open source 2.61.1

Related guide: Change the default app for a file type in Windows