S

siyuan

SHA-256
43.8k stars·Office Productivity·SHA-256 checksum verified

A privacy-first personal knowledge management system with fine-grained block-level references and Markdown WYSIWYG.

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Download Download Version

v3.6.5 · 188.1 MB

Privacy-first knowledge management with block-level references and Markdown WYSIWYG.

Core Features

  • Block-level references and bidirectional links down to paragraph level
  • WYSIWYG Markdown editor with support for million-word documents
  • Local-first, fully offline, and self-hostable via Docker
  • Built-in database views, flashcards, AI writing, OCR
  • Rich community marketplace for plugins and themes

What It Can't Do

  • •Free cloud sync only available via self-hosted server. Third-party sync (iCloud, OneDrive) may corrupt data – use official sync. Advanced features (cloud sync, AI credits) require paid subscription. As AGPLv3 licensed, commercial use must comply with the license.

Use Cases

  • Personal knowledge management and second brain
  • Academic research and note-taking
  • Team collaboration (self-hosted)
  • Long-term diary and project planning

SiYuan is an open-source, privacy-first personal knowledge management system that allows you to create, organize, and connect your knowledge with fine-grained block-level references, bidirectional links, and a WYSIWYG Markdown editor. It supports offline use, self-hosting via Docker, and offers features like to-do lists, flashcards, AI writing, and database views. While most features are free (including commercial use), some advanced capabilities (e.g., cloud sync) require a paid subscription.

Tags

knowledge-managementnote-takingmarkdownprivacyself-hostedopensourceblock-reference

Getting Started

1

Download installer

Click the button above to download the installer for your system

2

Install the software

Install the appropriate package for your distro (dpkg / rpm / AppImage)

3

Download the installer for your OS (Windows/Mac/Linux) or use Docker image

4

Run the installer and follow the setup wizard

5

Launch SiYuan, create a notebook, and start taking notes

Install Guide
  1. Download the installer for your OS (Windows/Mac/Linux) or use Docker image
  2. Run the installer and follow the setup wizard
  3. Launch SiYuan, create a notebook, and start taking notes
File Integrity

SHA-256 checksum verified

Checksum extracted from GitHub official Release page

SHA256 Checksum

4980bd7a8677fe55054886b0d3abb65c24d4d3a6c63ad9be7ea16836930643fa

This checksum is extracted from the GitHub Release page. Verify file integrity after download.

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Open Source Transparency

View GitHub Source
Environment Guide

Uninstall Info

Windows: uninstall via Control Panel; macOS: drag app to Trash; Linux: remove via package manager; Docker: stop and delete container.

No Extra Dependencies

Ready to use after download. No additional runtime required.

Project Info
LicenseAGPL-3.0
Last Updated2026-10-28 13:48:24
GitHub RepositoryOfficial Website

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