AppFlowy

appflowy.io

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Open-source, privacy-first workspace for notes, docs, and project management — a self-hostable alternative to Notion that keeps your data local.

Why it is useful

AppFlowy stores data locally by default (with optional cloud sync) rather than requiring everything to live on a third party's servers, appealing to users who want Notion-style flexibility without giving up data ownership. It's under active development with native desktop apps for Mac, Windows, and Linux, plus a growing plugin/database system.