Compare software

KeeWebButtercup
Free

Free and open source under the MIT licence.

 Free

Free and open source, no longer developed.

Windows, macOS, Linux, Web Windows, macOS, Linux
  • Same kdbx files as KeePass, with a far more modern interface
  • Opens databases directly from cloud storage or WebDAV
  • Vaults are ordinary encrypted files you control, with no Buttercup account
  • Installers for Windows, macOS and Linux, plus a portable Windows build
  • Upstream development has been slow for some time
  • The web version means trusting a page with your vault in memory
  • The project has ended; no updates or security fixes will follow the September 2024 release
  • Issues and pull requests are ignored, so bugs will not be fixed
Downloadable app, Web application Downloadable app
Open source Open source
License: MIT License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 26, 2026

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