SiYuan

Yunnan
Founded 2020

SiYuan is a privacy-first personal knowledge management system that supports complete offline usage, as well as end-to-end encrypted data sync. It fuses blocks, outlines, and bidirectional links to refactor thinking.

Last Updated: March 13, 2026

Current Valuation

No valuation data available

Funding Summary

No funding data available.

Key People

Core OSS Projects

A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.

License: AGPL-3.0

Business Information

Industries

Software

Technologies

Open Source
Knowledge Management
Note-taking

Sectors

Developers

Licenses

AGPL-3.0

Socials and Communities

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