When comparing Keeper Password Manager vs KeeWeb, the Slant community recommends KeeWeb for most people. In the question“What is the best cross-platform password manager?” KeeWeb is ranked 18th while Keeper Password Manager is ranked 20th. The most important reason people chose KeeWeb is:
KeePass 2.x *.kdbx password-databases (provided they are encrypted by AES-256 with AES key-derivation) are compatible with KeeWeb.
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Pros
Pro Available on all major platforms, OS & browser extensions
Keeper is available for download on Android, iOS, Windows, Mac, Windows Phone, Linux, Kindle, and Nook, and available as a browser extension for IE, Chrome, Firefox, Safari and Opera.
Pro Multiple certifications & security compliance
Keeper is a password manager that is certified and is security compliant with HITECH and HIPAA, SOC-2, TRUSTe, McAfee Secure, ES-EU Safe Harbor, PCI-DSS & U.S. Department of Commerce's Bureau of Industry and Security.
Note: These features are "NOT VERY EASY" to obtain.
Pro Its password databases are compatible with those of KeePass 2.x
KeePass 2.x *.kdbx password-databases (provided they are encrypted by AES-256 with AES key-derivation) are compatible with KeeWeb.
Pro Available as an online or offline app
There are Windows, Linux and Mac OSX offline apps.
Pro Supports WebDAV, Google Drive and OneDrive
Pro Syncs with Dropbox
Pro Supports 2FA
And it's Google Authentication compatible.