SiYuan Knowledge Management

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About

SiYuan is a privacy-first personal knowledge management system with block references, bidirectional links, Markdown WYSIWYG editing, offline use, and optional paid sync capabilities.

SiYuan is a substantial PKM product, not a lightweight note app. The official product positioning emphasizes privacy-first local storage, fine-grained block references, bidirectional linking, Markdown WYSIWYG, offline-first use, and self-hosting. It also layers in databases, web clipping, OCR, AI-assisted writing, mobile apps, Docker deployment, and optional paid sync features. It is clearly in scope as a serious personal knowledge and note-native system.

Who Is SiYuan Best For?

SiYuan is particularly well-suited for:

PKM power users
People who want block references and backlinks
Privacy-conscious knowledge workers
Users who want local-first control
Researchers building complex personal knowledge systems
View all Knowledge Management apps

Credibility of This Listing

We show what we know, where it comes from, and what is still incomplete.

Review Coverage

Limited

Third-party review coverage is limited for this listing. Treat the score as directional rather than comprehensive.

NoteFinderz Research

March 16, 2026

NoteFinderz research refreshed on March 16, 2026.

Product Freshness

Unknown

Product update date not yet recorded.

Descriptions, use cases, pros, and limitations are written and curated by NoteFinderz. Ratings and review volume are aggregated from public signals when they exist.

Visible Review Sources

Coverage in progress
No third-party review sources are linked to this listing yet. We still keep the app in the directory, but confidence in the score is lower.

Features

Markdown
WYSIWYG
Offline Mode
Search
Database
Templates
Export Options
Web Capture
AI Features
Tables
Split-screen
API Access

Ratings & Reviews

4.6

Pricing

Freemium
Free Tier Available

Category

Knowledge Management

Project Health

Status
Active

Publisher & Origin

Developer
Yunnan Liandi Technology Co., Ltd
Source Model
Open source
License
AGPL-3.0
Country of Origin
China
Headquarters
China
Origin Type
Company

Pros

βœ“ Open source
βœ“ Strong block-based PKM model
βœ“ Offline-first
βœ“ Cross-platform including mobile
βœ“ Rich feature depth for serious knowledge workers

Cons

⚠ Steeper learning curve
⚠ Some sync features are paid
⚠ UI and docs can feel dense to newcomers
⚠ Heavier product than simpler note apps

Frequently Asked Questions

Is SiYuan free to use?

Yes, SiYuan offers a free tier that you can use without payment. Basic functions are free. Pro features are sold as a one-time lifetime purchase, and cloud sync is available through a paid subscription.

What platforms does SiYuan support?

SiYuan is available on Web, macOS, Windows, Linux, iOS, iPadOS, Android. You can access it from any web browser, plus dedicated apps for other platforms.

Is SiYuan open source?

Yes, SiYuan is open source. You can view the source code and contribute on GitHub at https://github.com/siyuan-note/siyuan.

Does SiYuan work offline?

Yes, SiYuan supports offline mode. You can access and edit your notes without an internet connection, and changes will sync when you're back online.

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