Mermaid vs Excalidraw: Which Should You Choose in 2026?
Choosing between Mermaid and Excalidraw 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 April 14, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Mermaid
Create diagrams and charts from text in a simple, intuitive, and highly customizable way.
Best for you if:
- • You need diagramming features specifically
- • Generates diagrams and charts from text definitions.
- • Supports various diagram types like flowcharts and sequence diagrams.
Excalidraw
Virtual whiteboard for sketching
Best for you if:
- • You need ui/ux design features specifically
- • Open-source virtual whiteboard for hand-drawn style diagrams and sketches.
- • Features real-time collaboration, voice chat, and export to PNG, SVG, and PDF.
| At a Glance |  Mermaid |  Excalidraw |
|---|---|---|
Price | Free | Free |
Best For | Diagramming | UI/UX Design |
Rating | — | — |
| Feature | Mermaid | Excalidraw |
|---|---|---|
| Pricing Model | Free | Free |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | DiagrammingData Visualization | UI/UX DesignWhiteboard |
How Mermaid and Excalidraw Compare
Mermaid
Create diagrams and charts from text in a simple, intuitive, and highly customizable way.
Free
Excalidraw
Virtual whiteboard for sketching
Free
Mermaid is a diagramming tool. Excalidraw is in ui/ux design.
Who Should Use What?
On a budget?
Both are free. Compare plans on their websites.
Go with: Mermaid
Want the highest-rated option?
Neither has user reviews yet.
Go with: Mermaid
Value user reviews?
Neither has user reviews yet.
Go with: Mermaid
3 Questions to Help You Decide
What's your budget?
Both are free. Pricing won't help you decide here.
What's your use case?
Mermaid is a diagramming tool. Excalidraw is in ui/ux design. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Mermaid
- Completely free
- Our pick for this comparison
Excalidraw
- Better fit for ui/ux design
The Bottom Line
Mermaid is our pick.
Frequently Asked Questions
Is Mermaid or Excalidraw better?
Mermaid is rated high in our evaluation. Both are free.
What are Mermaid and Excalidraw used for?
Mermaid: Create diagrams and charts from text in a simple, intuitive, and highly customizable way.. Excalidraw: Virtual whiteboard for sketching.
What does Mermaid cost vs Excalidraw?
Mermaid is completely free. Excalidraw is completely free. Visit their websites for detailed pricing.