SiYuan — приватная блочная база знаний

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SiYuan is a privacy-first "own everything" knowledge base: a block-based notes and knowledge editor focused on data ownership, running locally with a self-hosting option. Reach for it when you want a powerful personal knowledge tool as an alternative to Notion/Obsidian but with privacy: keep block-based notes with bidirectional links, databases, and a graph, work offline, store data yourself, and optionally sync through your own storage. It has desktop, mobile, and a self-hosted version. Its focus is a private block-based knowledge base with backlinks and data ownership, not a cloud service or docs-as-code: the value is keeping a linked knowledge base locally while fully controlling the data. In job it sits alongside AppFlowy, Anytype, and Obsidian; the difference is a block model with strong linking and privacy. It suits people who keep a large personal knowledge base and want Notion/Obsidian power without cloud lock-in.