A free, open-source password manager.

Strong encryption, a simple interface, and nothing to pay, ever. Store your credentials in a vault only you control.

256-bit AES encrypted vaults that meet today's security standards. Your credentials stay yours.

A clean interface built on basic concepts, so storing and finding your logins takes seconds, not effort.

Free to download, free to use, forever. No accounts, no subscriptions, no catch.

Platforms

Buttercup for Desktop
in development

A beautifully simple password manager for your computer. Windows and Linux are in active development, and macOS (Apple silicon) is planned.
Buttercup for Browsers
in development

Autofill and quick access right in your browser. New versions for Firefox, Chrome and Edge are in active development.

The current Firefox add-on is still on addons.mozilla.org ↗
Buttercup for Mobile
planned

Carry your vault with you. iOS and Android apps are planned but not in development yet.