AppFlowy vs HackMD

AppFlowy is an open-source alternative to Notion that provides documents, wikis, and project management in a privacy-focused workspace. It operates as a local-first application with optional cloud sync and supports self-hosted deployments. AppFlowy uses a block-based editor and includes AI features powered by GPT-5, Gemini 2.5 Pro, and Claude 3.7 Sonnet.

HackMD is a note-taking tool that real-time collaborative markdown editor for team documentation with split-pane editing and publishing. It offers a freemium pricing model.