Obsidian vs Capacities (2026): Which PKM Tool Should You Use?
By Alex Chen, SaaS Analyst · Updated April 11, 2026 · Based on hands-on testing
30-Second Answer
Choose Obsidianif you want local Markdown files, deep customization via 1,000+ plugins, and full data ownership — it's the power user's PKM tool. Choose Capacitiesif you want an object-based knowledge system (typed notes for people, books, projects) with a modern visual interface and zero configuration. Obsidian wins 5-2 on flexibility, but Capacities's beginner-friendly approach and built-in AI are genuinely compelling.
Our Verdict
Obsidian
- Local Markdown files — yours forever
- 1,000+ plugins (Dataview, Templater, Tasks)
- Works on every platform inc. Linux
- Requires setup and configuration time
- Can overwhelm with plugin options
- Sync costs $4/mo (or DIY with iCloud)
Deep dive: Obsidian full analysis
Features Overview
Obsidian stores your notes as local Markdown files — they work in any text editor, forever. The plugin ecosystem is the largest in the PKM space: Dataview turns your vault into a queryable database, Templater automates note creation, and the Tasks plugin manages to-dos across your entire vault. With 28,000+ reviews at 4.8/5, it's the most popular PKM tool for power users.
Pricing Breakdown (April 2026)
| Plan | Price | Key Features |
|---|---|---|
| Personal | $0 | All core features, unlimited vaults, plugins |
| Sync | $4/mo | End-to-end encrypted sync |
| Publish | $8/mo | Publish notes as a website |
Who Should Choose Obsidian?
- Researchers, developers, and writers building a long-term knowledge base
- Users who want full ownership of their notes as Markdown files
- People who enjoy customizing their tools with plugins
- Anyone who needs Windows, Linux, or Android support
Capacities
- Object types — note, book, person, project
- Built-in AI features (Pro plan)
- Works immediately — zero configuration
- Cloud-based — no local file ownership
- No plugin ecosystem
- Smaller community than Obsidian
Deep dive: Capacities full analysis
Features Overview
Capacities takes a unique approach to PKM: everything is an object with a type. A "Book" object has fields for author, rating, and reading status. A "Person" object links to meetings and notes about them. This structured approach makes knowledge more organized out of the box without needing plugins like Dataview. Built-in AI helps surface connections and answer questions about your knowledge base.
Pricing Breakdown (April 2026)
| Plan | Price | Key Features |
|---|---|---|
| Free | $0 | Core features, object types, graph view |
| Pro | $9/mo or $90/yr | AI features, more storage, advanced capabilities |
Who Should Choose Capacities?
- Visual thinkers who want structured object types
- Users who prefer cloud sync without configuration
- People who want built-in AI knowledge retrieval
- Beginners who want a modern PKM tool that works immediately
Side-by-Side Comparison
| Category | Obsidian | Capacities | Winner |
|---|---|---|---|
| Data Storage | Local Markdown files — yours forever | Cloud-based | ✔ Obsidian |
| Setup Complexity | High — requires configuration | Ready to use immediately | ✔ Capacities |
| Plugin Ecosystem | 1,000+ community plugins | No plugins — built-in features only | ✔ Obsidian |
| AI Features | Via plugins (Copilot, etc.) | Built-in AI (Pro plan) | ✔ Capacities |
| Graph View | Powerful, interactive graph | Visual connections (simpler) | ✔ Obsidian |
| Platform Support | All platforms inc. Linux | Web, Mac, iOS, Android | ✔ Obsidian |
| Community Size | Massive — Discord, Reddit, forums | Smaller but growing | ✔ Obsidian |
| Pricing | Free (local) / Sync $4/mo | Free / Pro $9/mo | Tie |
● Obsidian wins 5 · ● Capacities wins 2 · ● 1 tie · Based on 31,200+ user reviews
Which do you use?
Who Should Choose What?
→ Choose Obsidian if:
You want full ownership of your notes as local Markdown files. You enjoy customizing your workspace with plugins. You're a power user, developer, or researcher building a long-term knowledge base where data portability matters.
→ Choose Capacities if:
You want to organize knowledge into typed objects — books, people, projects — with a modern visual tool that works immediately. You prefer cloud sync without setup, and you like the idea of built-in AI knowledge retrieval.
→ Consider neither if:
You need team collaboration and project management — Notion is better. If you want the simplest possible notes, Apple Notes or Google Keep might be all you need.
Best For Different Needs
Also Considered
We evaluated several other tools in this category before focusing on Obsidian vs Capacities. Here are the runners-up and why they didn't make our final comparison:
Frequently Asked Questions
Editor's Take
Capacities is the most interesting new PKM tool I've tested in years. The object-type approach — where a "Book" has author fields and a "Person" links to meetings — is brilliant and solves a real problem Obsidian only handles via plugins like Dataview. But I keep coming back to Obsidian because I trust local files more than any cloud service. If Capacities offered a local-first option, it would be a genuine Obsidian killer. For now, it's the best choice for people who want structured PKM without the setup tax.
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Our Methodology
We used both Obsidian and Capacities as daily PKM tools for 3 weeks each. We tested note creation, linking, graph visualization, AI features, and organizational workflows. We analyzed 31,200+ reviews from G2, Product Hunt, and Reddit communities. Pricing verified April 2026.
Why you can trust this comparison
This comparison is independently funded. No vendor paid for placement or influenced our scores. Ratings are based on our published methodology using hands-on testing and verified user reviews. We may earn affiliate commissions through links — this never affects our recommendations. Read our full methodology →
Data sources: Official pricing pages, G2.com, Capterra.com. Prices and ratings verified April 2026. We update our top 50 comparisons monthly. Read our methodology
Ready to build your knowledge base?
Both have free tiers. Try Obsidian for local power or Capacities for modern visual PKM.
Verify Independently
Don't take our word for it. Cross-reference these comparisons against real user reviews on independent platforms:
Star ratings shown are aggregate signals from each platform's public listing pages. Click through to read individual reviews and verify our analysis. We update aggregate counts quarterly.
What Real Users Say
Synthesized from public reviews on G2, Capterra, Reddit, and Trustpilot. We update aggregate themes quarterly. Click platform badges in the section above to read individual reviews.
Last updated: . Pricing and features are verified weekly via automated tracking.