SiYuan is a privacy-first personal knowledge management system, support fine-grained block-level reference and Markdown WYSIWYG.

Features

Most features are free, even for commercial use.

Content block

Block-level reference and two-way links

Custom attributes

SQL query embed

Protocol siyuan://



Editor

Block-style

Markdown WYSIWYG

List outline

Block zoom-in

Block horizontal layout

Million-word large document editing

Mathematical formulas, charts, flowcharts, Gantt charts, timing ch