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SiYuan
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Added:10/17/2025
Type:Desktop App
Monthly Traffic:-
Pricing:
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AI-PoweredOpen SourceSelf-HostedCollaborationMulti-LanguageData ExportGDPR CompliantSecurity
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What is SiYuan

SiYuan is a personal knowledge management system that treats every piece of content as a block. These blocks can be linked, referenced, and organized in multiple ways. Unlike traditional note-taking apps, SiYuan gives you complete control by storing everything locally on your device.

The tool uses a block-based approach where even whole documents are treated as blocks. This makes it easy to split, move, and connect information without breaking existing links. You can create bidirectional links between ideas, use outlines to organize thoughts, and view your knowledge as a graph.

It includes features like mathematical formulas, charts, flashcards for learning, and database views. The app is self-hosted, meaning you own your data completely.

How to Use SiYuan

Getting started with SiYuan is straightforward. Here are the key steps:

  • Download and install SiYuan from the official website for your operating system, whether Windows, Mac, Linux, or mobile devices.

  • Create your first notebook after opening the app. This becomes your workspace where all notes will be stored.

  • Start writing using the markdown editor. The interface shows formatted text as you type, so you do not need to remember markdown codes.

  • Create links between notes by typing double brackets around words or using the slash command to reference specific blocks from other documents.

  • Use the outline view to organize your thoughts in a structured way. You can fold and unfold sections to focus on specific parts.

  • Enable sync features if you want to access notes on multiple devices. You can use the official cloud service or connect your own storage service like Amazon S3.

Features of SiYuan

  • Privacy-first with complete offline use

  • Block-level references and bidirectional links

  • Markdown editor with visual formatting

  • End-to-end encrypted sync

  • Spaced repetition flashcards

  • Database views with relations

  • Self-hosted deployment option

  • Multiple device support

  • Mathematical formulas and charts

  • Open source and free for local use

  • Graph view of knowledge connections

SiYuan Pricing

Most Popular
Free

Free

What's included:
  • All basic note-taking features
  • Block-level editing and references
  • Bidirectional links
  • Markdown WYSIWYG editor
  • Complete offline use
  • Unlimited local storage
  • Graph view
  • Database views
  • Spaced repetition flashcards
  • Free for commercial use
PRO Features

$64 once

What's included:
  • All Free features included
  • Third-party S3 integration for sync
  • Third-party WebDAV integration for backup
  • Connect your own cloud storage
  • One-time payment, use for life
  • No recurring fees
Subscription

$148 once

What's included:
  • All PRO features included
  • Official cloud sync service
  • 8GB official cloud storage space
  • Cloud Inbox for quick capture
  • Automatic data backup
  • End-to-end encrypted sync
  • Priority support
  • Limited seats available

SiYuan Repository

View on Github
Stars38,563
Forks2,371
Repository Age5 years
Last Commit8 days ago

FAQ's About SiYuan

Is SiYuan completely free to use?
Yes, SiYuan is completely free for local use with all core features including block editing, markdown support, and offline access. You only pay if you want cloud sync services or third-party storage integration. Even commercial use is free for local features.
How is SiYuan different from Notion or Obsidian?
SiYuan combines the best of both worlds. Like Obsidian, it stores files locally and works offline, giving you complete data ownership. Like Notion, it has database features and visual editing. The key difference is SiYuan's block-level approach where everything is a referenceable block.
Can I sync my notes across multiple devices?
Yes, SiYuan offers multiple sync options. You can purchase the official cloud sync subscription for $148 lifetime, or use the PRO package ($64) to connect your own S3 or WebDAV storage service for syncing.
Is my data secure in SiYuan?
Yes, SiYuan prioritizes privacy. All data is stored locally on your device by default. If you enable sync, the data is encrypted end-to-end, meaning only you can read it. Even the cloud service cannot access your unencrypted notes.
Can I use SiYuan for team collaboration?
Yes, you can deploy SiYuan on your own server using Docker and share access with your team through authorization codes. This allows multiple people to work on the same knowledge base while maintaining control over your data.

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