Buttercup

Free open-source, cross-platform password manager syncing to Dropbox, Drive, or WebDAV.

Desktopfreeglobal

Buttercup is a free, open-source, cross-platform password manager for Mac, Linux, and Windows, storing encrypted vaults locally or synced via Dropbox, Google Drive, or a WebDAV service like Nextcloud. Companion mobile and browser-extension apps are also available. It's for individuals who want a free password manager without depending on one vendor's proprietary cloud; note the project has officially ended active development.

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Behind the summary, Matchbox keeps a richer profile of Buttercup - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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