kitio.aiNapkin AI vs Diagramming AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Napkin AI starts at $9/mo and Diagramming AI starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Text to diagram
- Editable visuals
- Style presets
- SVG and PDF export
- Brand styles
- Prompt to diagram
- Five diagram engines
- Live preview
- Chat editing
- Excalidraw themes
- Read-only share links
| Feature | Napkin AI | Diagramming AI |
|---|---|---|
| Best for | Turns written text into editable diagrams and visuals | Generate and edit Mermaid, PlantUML and Excalidraw diagrams by chat |
| Category | Design | Design |
| Pricing model | Freemium | Freemium |
| Starting price | $9/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Napkin AI | Diagramming AI |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Napkin AI starts at $9/mo and Diagramming AI starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 500 AI credits per week
- Unlimited PNG and PDF export
- Napkin branding on visuals
Plus
$9/mo
- Per person
- Premium AI image models
- Unlimited PPT and SVG export
- 3 brand styles, no branding
Pro
$22/mo
- Per person
- Exclusive designs
- Unlimited custom branding
- Upload your own fonts
Enterprise
Contact sales
- Custom plan for organizations
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Napkin AI
- Fast visuals from existing text
- Results stay fully editable
- Clean, consistent style
- Less suited to free-form illustration
- Credit limits on the free plan
Diagramming AI
- Supports five diagram formats
- Output stays editable as code
- Theme changes don't need regeneration
- Pricing is not shown on the homepage
- Share links are read-only
Which one should you choose?
Choose Napkin AI if you want:
- Fast visuals from existing text
- Results stay fully editable
- Clean, consistent style
Watch out: less suited to free-form illustration.
Choose Diagramming AI if you want:
- Supports five diagram formats
- Output stays editable as code
- Theme changes don't need regeneration
Watch out: pricing is not shown on the homepage.
Napkin AI vs Diagramming AI FAQ
What is the difference between Napkin AI and Diagramming AI?
Napkin AI: Turns written text into editable diagrams and visuals. Diagramming AI: Generate and edit Mermaid, PlantUML and Excalidraw diagrams by chat. Both are design tools.
Is Napkin AI or Diagramming AI cheaper?
Napkin AI starts at $9/mo and Diagramming AI starts at See pricing page. Check both pricing pages for current plans.
Do Napkin AI and Diagramming AI have free plans?
Napkin AI: Yes. Diagramming AI: Yes.
Who makes Napkin AI?
Napkin AI is made by Napkin AI, based in United States.
Who makes Diagramming AI?
Diagramming AI is made by Diagramming AI.
Which should I choose, Napkin AI or Diagramming AI?
Choose Napkin AI if you value fast visuals from existing text and results stay fully editable. Choose Diagramming AI if you value supports five diagram formats and output stays editable as code.