SiYuan
Privacy-first personal knowledge management system with block-level references and Markdown WYSIWYG
Free · Open sourceLatest versionMacWindows
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About SiYuan
SiYuan is a privacy-first personal knowledge management system. It supports fine-grained block-level references and a Markdown WYSIWYG editor, so notes can link to each other down to the individual block.
Notes can be exported as standard Markdown, PDF, Word or HTML, and the editor handles math formulas, charts and flowcharts. It suits people who build a connected knowledge base and want to keep their notes under their own control.
Highlights
- Block-level references and two-way links
- Markdown WYSIWYG editor that handles very large documents
- Flashcards with spaced repetition
- Export to Markdown, PDF, Word and HTML
- Database table view and SQL query embeds
- Web clipping and Tesseract OCR
Description adapted from the project README.
- Version
- 3.8.7
- Updated
- Oct 14, 2026
- Size
- 190 MB to 261 MB
- License
- GNU AGPL 3.0
Open source details
- Source code
- Exact source for v3.8.7
- Released
- Oct 14, 2026
- GitHub stars
- 46.8K
- Website
- b3log.org/siyuan
Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.
License
CopyleftGNU AGPL 3.0
Use and change it freely; anything built from it must be shared under the same license, with its source. That includes running a changed copy as a network service.
Read the full licenseHow this app was checked
AppsXi checks every version before it is listed.
Mac
Signed by Yunnan Liandi Technology Co., Ltd. (FJT3K7XAD8)
Apple Developer ID team FJT3K7XAD8
Notarized by Apple
Hardened Runtime on
File matches the hash GitHub published
SHA-256 827d2220362a3ee0685a730360fee1d3d0dd60b5e2d93e048f09b0bf700390a8
No malware found
ClamAV 1.5.4 on Oct 14, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
2 technical notes
- allow-unsigned-executable-memory (allow-jit is safer)
- Electron fuses not hardened: RunAsNode on, EnableNodeOptionsEnvironmentVariable on, EnableNodeCliInspectArguments on, EnableEmbeddedAsarIntegrityValidation off, OnlyLoadAppFromAsar off
Windows
Signed by Yunnan Liandi Technology Co., Ltd.
Certificate from SSL.com Code Signing Intermediate CA ECC R2,O=SSL Corp,L=Houston,ST=Texas,C=US
Signature is timestamped
12 of 26 bundled files are unsigned
File matches the hash GitHub published
SHA-256 cd45cc9b650f96fd6a2d873479b502e1dae5448394ed292348b72bf284f38e97
No malware found
ClamAV 1.5.4 on Oct 14, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
2 technical notes
- 12 of 26 bundled executables or libraries are unsigned
- 3 bundled binaries lack ASLR or DEP
Versions
3.8.7checked
Checked Oct 14, 2026 · Mac and Windows
DMG · 261 MB, EXE · 225 MB, EXE · 190 MB
Questions about SiYuan
Is SiYuan free?
Yes. SiYuan is free and open source under the GNU AGPL 3.0. AppsXi lists the maintainers' official release and does not charge for it.
Is SiYuan safe to download?
AppsXi downloads every version of SiYuan from the maintainers' official GitHub release and checks it before it is listed. For version 3.8.7 (checked Oct 14, 2026), the Mac download is signed by its developer and notarized by Apple, the Windows download is Authenticode signed, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.
Does SiYuan run on Apple silicon Macs?
SiYuan's Mac download is built for Intel. Apple silicon Macs run it through Rosetta 2.
What does SiYuan need to run?
SiYuan needs macOS Monterey (12) or later.
Who makes SiYuan?
SiYuan is an open source project by SiYuan on GitHub (siyuan-note/siyuan). Help and bug reports go to its maintainers there.
Reviews
No reviews yet. Anyone who downloads it from AppsXi while signed in can review it a day later.
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