Mermaid vs Excalidraw: Which is Better 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.
Bottom line: Mermaid is our overall pick for diagramming workflows. Pick Excalidraw if you need whiteboard.
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 whiteboard 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 |
|---|---|---|
Starts at | $8/moPlus | 7/moExcalidraw+ Monthly |
Best For | Diagramming | Whiteboard |
Rating | - | - |
Choose Mermaid or Excalidraw?
Choose Mermaid if
Create diagrams and charts from text in a simple, intuitive, and highly customizable way.
- Diagrams as code
- GitHub native support
- Free and open source
- Your work is diagramming-shaped, not whiteboard-shaped
Choose Excalidraw if
Virtual whiteboard for sketching
- Free to use
- Simple UI
- Sketch aesthetic
- Your work is whiteboard-shaped, not diagramming-shaped
| Feature | Mermaid | Excalidraw |
|---|---|---|
| Pricing Model | Free | Free |
| User Rating | ★4.7/5 6 reviews | No ratings yet |
| Categories | DiagrammingDocumentation | WhiteboardDiagramming |
In-Depth Analysis
Mermaid
Create diagrams and charts from text in a simple, intuitive, and highly customizable way.
Strengths
- +Diagrams as code
- +GitHub native support
- +Free and open source
- +Many diagram types
- +Easy syntax
Weaknesses
- -Limited styling
- -Complex diagrams hard
- -Rendering varies
- -Documentation gaps
- -Less flexible than draw tools
Key features
Excalidraw
Virtual whiteboard for sketching
Strengths
- +Free to use
- +Simple UI
- +Sketch aesthetic
Weaknesses
- -Basic features
- -No rich templates
Key features
Pricing: Mermaid vs Excalidraw
| Plan | Mermaid | Excalidraw |
|---|---|---|
| Tier 1 | Free Open Source | 0 Free |
| Tier 2 | Free Basic | 7 Excalidraw+ Monthly |
| Tier 3 | $8 Plus | 6 Excalidraw+ Yearly |
| Tier 4 | Custom Premium | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Mermaid pricing and Excalidraw pricing.
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 whiteboard. 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 whiteboard
The Bottom Line
Mermaid is our pick.
Frequently Asked Questions
Is Mermaid or Excalidraw better?
Mermaid is rated 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.