Architecture Descriptions
View main text and Mermaid diagrams together to grasp the full specification flow.
Use Case
Diagrams treated as part of the core reading experience.
A primary choice for reading Mermaid-heavy Markdown specifications.
When architecture diagrams are part of your narrative, KatanA treats them with the same priority as the text itself.
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Diagram-first
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Related links
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Native desktop
Diagram-First
A reader where Mermaid isn't an edge case
ZenUML sequence diagrams are included in Mermaid support, and the same philosophy extends to PlantUML and Draw.io.
comparison
Quick comparison
Comparison as of 2026.04.11
- Markdown review focus
- Faster technical-doc checking
- Diagrams for review, not editing
| Tool | Main focus | Startup/runtime | Price | Diagram handling |
|---|---|---|---|---|
| KatanA | Markdown review | Light | Free | Mermaid (including ZenUML) / PlantUML / .drawio |
| Typora | Markdown writing | Light | Paid (USD) | Mermaid-oriented |
| Obsidian | Knowledge base | Slow startup | Free | Mermaid built-in; .drawio via plugins |
| VS Code | General IDE | Depends on extensions | Free | Extension-dependent |
Use it when README / ADR / specs / release notes need to be reviewed as one flow.
Check Markdown, Mermaid (including ZenUML), PlantUML, and .drawio during review instead of editing diagrams by hand.
Where KatanA Fits Best
Workspace Context
Follow design discussions while navigating related documents and release notes.