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KeePassDX vs Proton Pass: catalog facts
KeePassDX	Proton Pass
Free Free and open source under the GPL. A paid version on the Play Store supports development.	Paid Pass Family is a paid subscription covering six users.
Android	Windows, macOS, Linux, Android, iOS, Browser extension
Native Android autofill and biometric unlock over a local kdbx file No account, no sync service, nothing leaves the device unless you move the file	End-to-end encryption for logins, cards and notes Shared vaults update for every member at once
You still have to arrange syncing the database file yourself Advanced editing features lag the desktop clients	Family features require a paid subscription Requires a Proton account for every member
Downloadable app	Downloadable app, Hosted service, Browser extension
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.