Obsidian 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?
FeatureObsidianSiYuan
CategoryNotes & Knowledge BaseNotes & Knowledge Base
LicenseProprietaryAGPL-3.0
LanguageJavaScriptTypeScript
Setup difficultyEasyMedium
Min. RAM256 MB512 MB
Deploymentbinarydocker, binary, source
GitHub stars★ 20,632★ 45,670
First released20202020
ReplacesEvernote, Notion, OneNoteNotion, Evernote

Why pick each one

Choose Obsidian if…

  • Notes stay portable and local
  • Highly extensible
Obsidian details

Choose SiYuan if…

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

Frequently asked questions

Is Obsidian or SiYuan better?

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

Are Obsidian and SiYuan free and open-source?

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

Can I run Obsidian and SiYuan with Docker?

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

Related comparisons