Zettlr vs SiYuan

A side-by-side comparison of two self-hosted notes & knowledge base options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureZettlrSiYuan
CategoryNotes & Knowledge BaseNotes & Knowledge Base
LicenseGPL-3.0AGPL-3.0
LanguageTypeScriptTypeScript
Setup difficultyEasyMedium
Min. RAM256 MB512 MB
Deploymentbare-metal, binarydocker, binary, source
GitHub stars★ 13,354★ 45,670
First released20172020
ReplacesNotion, ObsidianNotion, Evernote

Why pick each one

Choose Zettlr if…

  • Strong academic features
  • Plain Markdown files
Zettlr details

Choose SiYuan if…

  • Powerful block-based model
  • Works offline and self-hosted
SiYuan details

Frequently asked questions

Is Zettlr or SiYuan better?

Neither is universally better. SiYuan has the larger community, while Zettlr is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are Zettlr and SiYuan free and open-source?

Yes. Zettlr is licensed under GPL-3.0 and SiYuan under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Zettlr and SiYuan with Docker?

Zettlr: check the project docs for container support. SiYuan: yes.

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