SiYuan - Knowledge Management 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

Database

Templates

Export Options

Web Capture

AI Features

Tables

Split-screen

API Access

Ratings & Reviews

4.6

Pricing

Freemium

Free Tier Available

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

✓ Open source

✓ Strong block-based PKM model

✓ Offline-first

✓ Cross-platform including mobile

✓ 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.