SiYuan is a privacy-first personal knowledge management application.
It combines block-based note-taking with Markdown WYSIWYG editing, bidirectional links, databases, flashcards and document annotation.
Data is stored locally, while desktop and mobile applications, Docker deployment and optional cloud services are available.
This is free and open source software.
Key Features
- Block-level references and bidirectional links.
- Markdown WYSIWYG editing.
- Custom attributes for content blocks.
- Embeds results from SQL queries.
- Offers list outlines and block zooming.
- Handles documents containing millions of words.
- Supports mathematical formulae, charts, flowcharts and Gantt charts.
- Clips content from the web.
- Links notes to PDF annotations.
- Exports to Markdown, PDF, Word and HTML.
- Provides database tables for structured information.
- Includes flashcards with spaced repetition.
- Offers AI-assisted writing and question answering through the OpenAI API.
- Performs optical character recognition using Tesseract.
- Supports multiple tabs and split-screen editing.
- Offers templates and JavaScript and CSS snippets.
- Provides a community marketplace.
- Runs on Linux, macOS, Windows, Android, iOS and HarmonyOS.
- Supports self-hosting with Docker.
- Offers a command-line interface and programming API.
Website: github.com/siyuan-note/siyuan
Support:
Developer: Yunnan Liandi Technology Co., Ltd.
License: GNU Affero General Public License v3.0
SiYuan is written in TypeScript and Go. Learn TypeScript with our recommended free books and free tutorials. Learn Go with our recommended free books and free tutorials.
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