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SiYuan

Privacy-first personal knowledge management system

Notes & Knowledge Base ★ 45.7k stars Medium setup AGPL-3.0

SiYuan is an open-source, privacy-first personal knowledge management system that supports block-level references and bidirectional links. It can run locally or be self-hosted for access across devices.

Official siteSource code

Key features

  • Block-level referencing
  • Bidirectional links
  • Self-hosted or local mode
  • End-to-end encrypted sync

Pros & cons

Strengths

  • Powerful block-based model
  • Works offline and self-hosted

Trade-offs

  • Documentation strongest in Chinese
  • Some advanced features are paid

SiYuan replaces

Self-hosted Notion alternativesSelf-hosted Evernote alternatives

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