ChatFlowchart vs Diagramming AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. ChatFlowchart starts at $9.90 one-time 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
- Image and PDF to editable diagram
- Edit by chat
- Draw.io, Mermaid and Excalidraw export
- Flowchart animation video
- Prompt to diagram
- Five diagram engines
- Live preview
- Chat editing
- Excalidraw themes
- Read-only share links
| Feature | ChatFlowchart | Diagramming AI |
|---|---|---|
| Best for | Makes editable flowcharts from text, images and PDFs | Generate and edit Mermaid, PlantUML and Excalidraw diagrams by chat |
| Category | Design | Design |
| Pricing model | Freemium | Freemium |
| Starting price | $9.90 one-time | See pricing page |
| Free plan | Yes | Yes |
| Made by | ChatFlowchart | Diagramming AI |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
ChatFlowchart starts at $9.90 one-time 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
- Core AI diagram features
- No login required
- Watermarked PNG export
10-Credit Pack
$9.90 one-time
- 10 extra AI generations
- Credits never expire
Pro
$15.90/mo
- Unlimited AI diagrams
- Unlimited image-to-flowchart
- No-watermark HD exports
30-Day Pass
$19.90 one-time
- Pro access for 30 days
- Does not renew
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
ChatFlowchart
- Converts old diagram images to editable ones
- Exports to Draw.io and Mermaid
- Free use without signup
- Free exports are watermarked PNGs
- Tax or VAT added at checkout
- Complex diagrams may need manual cleanup
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 ChatFlowchart if you want:
- Converts old diagram images to editable ones
- Exports to Draw.io and Mermaid
- Free use without signup
Watch out: free exports are watermarked pngs.
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.
ChatFlowchart vs Diagramming AI FAQ
What is the difference between ChatFlowchart and Diagramming AI?
ChatFlowchart: Makes editable flowcharts from text, images and PDFs. Diagramming AI: Generate and edit Mermaid, PlantUML and Excalidraw diagrams by chat. Both are design tools.
Is ChatFlowchart or Diagramming AI cheaper?
ChatFlowchart starts at $9.90 one-time and Diagramming AI starts at See pricing page. Check both pricing pages for current plans.
Do ChatFlowchart and Diagramming AI have free plans?
ChatFlowchart: Yes. Diagramming AI: Yes.
Who makes ChatFlowchart?
ChatFlowchart is made by ChatFlowchart.
Who makes Diagramming AI?
Diagramming AI is made by Diagramming AI.
Which should I choose, ChatFlowchart or Diagramming AI?
Choose ChatFlowchart if you value converts old diagram images to editable ones and exports to draw.io and mermaid. Choose Diagramming AI if you value supports five diagram formats and output stays editable as code.