can i fork it?

Head-to-Head Comparison · Alternative to Tana · 🧠 notes & knowledge

Tana vs SiYuan

Structured blocks, attributes and database views, with less magic and more switches. Here is how SiYuan ($0/mo open source) stacks up against Tana ($30/mo) across cost, hosting, data privacy, and real-world trade-offs.

Open-Source Alternative

SiYuan

$0.00/mo · AGPL-3.0

Tana vs SiYuan Specification Matrix

facts verified 2026-08-10

DimensionTana (Paid)SiYuan (Replacement)
Monthly Price$30 / mo$0 / mo
1-Year Cost (1 seat)$360 / yr$0 / yr (Save $360)
1-Year Cost (5 seats)$1,800 / yr$0 / yr (Save $1,800)
1-Year Cost (10 seats)$3,600 / yr$0 / yr (Save $3,600)
Source & LicenseProprietary SaaSopen source AGPL-3.0
Where It RunsVendor CloudLocal or hosted (your machine or their cloud)
PlatformsWeb / Cloud
desktopmobileself-hostedextensionone-click install
GitHub Stars—★ 46k (active aug 2026)

Deep Dive: Switching from Tana to SiYuan

Trade-offs, installation & data architecture

The Catch vs Tana

What you trade away

SiYuan can structure blocks and show database views, but it lacks Tana's fast command-driven supertags and fluid live-search-node workflow.

Installation

How to deploy SiYuan

Desktop/mobile package, or Docker image for browser-based self-hosting

Day-2 Operations & Setup

What it takes to run

The desktop app installs cleanly, but free cross-device sync is not a turnkey feature: official cloud sync is a paid membership feature and Docker hosting does not transparently become desktop/mobile sync

Data Ownership

Where your data lives

A workspace stores block documents as structured .sy JSON files plus assets on disk; SQLite files hold indexes and auxiliary state; documents can export to Markdown, HTML, PDF, and Word

Build vs Fork Verdict: KINDA (the core, yes. the polish, no)

Why fork SiYuan instead of vibe-coding a Tana clone?

The visible structured networked notes loop is buildable, but a credible replacement needs more than the first screen. Tana earns its keep through polish, sync, importers, so expect a weekend or multi-day build and a narrower personal scope.

Tana vs SiYuan FAQ

Is SiYuan a good free alternative to Tana?+

Yes. SiYuan is a verified open-source (AGPL-3.0) replacement for Tana. Structured blocks, attributes and database views, with less magic and more switches.

What is the catch when switching from Tana to SiYuan?+

SiYuan can structure blocks and show database views, but it lacks Tana's fast command-driven supertags and fluid live-search-node workflow.

How much do you save switching from Tana to SiYuan?+

Tana costs $30/mo ($360/yr) per seat, whereas SiYuan is $0/mo. Switching saves $360/yr for a solo user, $1,800/yr for a 5-person team, and $3,600/yr for a 10-person team.

How do I install or self-host SiYuan instead of Tana?+

Install: Desktop/mobile package, or Docker image for browser-based self-hosting. Setup: The desktop app installs cleanly, but free cross-device sync is not a turnkey feature: official cloud sync is a paid membership feature and Docker hosting does not transparently become desktop/mobile sync

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