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SiYuan vs Capacities: Which Should You Choose in 2026?

Choosing between SiYuan and Capacities comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

By Toolradar Team · Last updated March 22, 2026 · Methodology

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

SiYuan

Privacy-first personal knowledge management system with Markdown, block references, and bi-directional links.

Best for you if:

    0
  • • You need something completely free
  • Privacy-first personal knowledge management.
  • Supports Markdown, block references, and bi-directional links.

Capacities

Object-based note-taking

Best for you if:

    0
  • Capacities is a note-taking app that organizes information as objects with types
  • It structures notes as books, people, projects, and custom object types
At a Glance
SiYuanSiYuan
CapacitiesCapacities
Price
FreeFree + Paid
Best For
Note-TakingNote-Taking
Rating
FeatureSiYuanCapacities
Pricing ModelFreeFreemium
Community RatingNo ratings yetNo ratings yet
Total Reviews00
Community Upvotes
0
0
Categories
Note-Taking
Note-TakingMind Mapping

How SiYuan and Capacities Compare

SiYuan

Privacy-first personal knowledge management system with Markdown, block references, and bi-directional links.

Free

Capacities

Object-based note-taking

Free tier available

Who Should Use What?

On a budget?

SiYuan is free. Capacities is freemium.

Go with: SiYuan

Want the highest-rated option?

Neither has user reviews yet.

Go with: SiYuan

Value user reviews?

Neither has user reviews yet.

Go with: SiYuan

3 Questions to Help You Decide

1

What's your budget?

SiYuan is free. Capacities is freemium. Go with SiYuan if free matters most.

2

What's your use case?

Both are note-taking tools. Compare their specific features to decide.

3

How important are ratings?

Neither has user reviews yet.

Key Takeaways

SiYuan

    0
  • Completely free
  • Our pick for this comparison

Capacities

    The Bottom Line

    SiYuan is our pick.

    Frequently Asked Questions

    Is SiYuan or Capacities better?

    SiYuan is rated high in our evaluation. SiYuan is free and Capacities is freemium.

    What are SiYuan and Capacities used for?

    SiYuan: Privacy-first personal knowledge management system with Markdown, block references, and bi-directional links.. Capacities: Object-based note-taking.

    What does SiYuan cost vs Capacities?

    SiYuan is completely free. Capacities is freemium (free tier + paid plans). Visit their websites for detailed pricing.

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