SiYuan

Note-taking apps

Free planFree trialAndroidBrowser extensioniOSLinuxmacOSSelf-hostedWebWindows

9.5#2 of 219$64/mofirst paid tier

Overview

SiYuan is ranked #2 of 219 in note-taking apps on Specifiction. It runs on Android, Browser extension, iOS, Linux, macOS, Self-hosted, Web, Windows. There is a free plan. A free trial is offered. Paid plans start at $64/mo.

SiYuan plans and pricing

All plans

Free Free $0 Lifetime Basic functions · Local storage b3log.org · 4 Oct 2026

PRO Features $64/mo Pay once, use for life; third-party storage is not included Basic functions · Third-party S3 data sync and backup integration · Third-party WebDAV data sync and backup integration b3log.org · 20 Sept 2026

Subscription $148/mo Pricing page displays Lifetime; its FAQ also refers to an annual subscription 8GB cloud storage b3log.org · 20 Sept 2026

PRO Features $64 once $64 Lifetime~~$96~~ Basic functions · Third-party S3 and WebDAV sync and backup integrations; storage service not included b3log.org · 4 Oct 2026

Subscription $148 once $148 Lifetime~~$296~~ PRO Features · 8GB official cloud storage · Cloud assets hosting · Cloud Inbox · Official data sync and backup b3log.org · 4 Oct 2026

Compared on note-taking apps

Free plan: Yesb3log.org
Offline access: Yesb3log.org
Supported platforms: Windows, macOS, Linux, iOS, Android, web interface, Chrome/Edge extension, API, Docker self-hostingb3log.org
Note sharing: Yesb3log.org
Storage limit: 8 GBb3log.org
Integrations: OpenAI API, Amazon S3-compatible storage, WebDAVb3log.org

Facts

Purpose: SiYuan describes itself as a privacy-first personal knowledge management system supporting Markdown, block-level references, and bidirectional links.b3log.org · 4 Oct 2026
Block editing: It organizes content as blocks and includes more than 20 block-level element types and more than 10 span-level element types.b3log.org · 4 Oct 2026
Large documents: The maker says dynamic loading allows documents with millions of words to be edited smoothly on ordinary computers.b3log.org · 4 Oct 2026
Flashcards: Spaced repetition uses the FSRS algorithm.b3log.org · 4 Oct 2026
Databases: Databases support relations, rollups, and templates.b3log.org · 4 Oct 2026
AI: The AI feature accesses OpenAI and can help continue writing, translate, summarize, brainstorm, and correct grammar and spelling.b3log.org · 4 Oct 2026
Knowledge links: The product provides backlinks with filtering and search, plus global and block-level relationship graphs.b3log.org · 4 Oct 2026
Privacy: The privacy policy says SiYuan does not collect user personal information or usage data and that data is kept on the user's device under their control.b3log.org · 4 Oct 2026
Encrypted sync: The maker describes multi-device sync as end-to-end encrypted and incremental.b3log.org · 4 Oct 2026
Self-hosting: SiYuan can be deployed on a server using its Docker image, with access rights controlled through an authorization code.b3log.org · 4 Oct 2026
Support and trial: The pricing FAQ says users can enable a trial subscription in SiYuan Desktop under Settings - Account, but does not state its duration; it also says subscriptions are non-refundable.b3log.org · 4 Oct 2026
Open source: The download page says SiYuan is completely open source and that most features are free, including for commercial use.b3log.org · 4 Oct 2026
Data format: The download FAQ says notebook documents use .sy files and the data format is JSON.b3log.org · 4 Oct 2026