draw.io vs Mermaid: Which Should You Choose in 2026?
Choosing between draw.io and Mermaid 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.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
draw.io
Free diagramming tool
Best for you if:
- • Free, security-first online and desktop diagramming tool.
- • Offers real-time collaboration and AI-powered diagram generation.
Mermaid
Create diagrams and charts from text in a simple, intuitive, and highly customizable way.
Best for you if:
- • Generates diagrams and charts from text definitions.
- • Supports various diagram types like flowcharts and sequence diagrams.
| At a Glance |  Mermaid | |
|---|---|---|
Price | Free | Free |
Best For | Diagramming | Diagramming |
Rating | 86/100 | 86/100 |
| Feature | draw.io | Mermaid |
|---|---|---|
| Pricing Model | Free | Free |
| Editorial Score | 86 | 86 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | DiagrammingWhiteboard | DiagrammingData Visualization |
Understanding the Differences
Both draw.io and Mermaid solve similar problems, but they approach them differently.draw.io positions itself as "free diagramming tool" while Mermaidfocuses on "create diagrams and charts from text in a simple, intuitive, and highly customizable way.". These differences matter depending on what you're trying to accomplish.
When to Choose draw.io
draw.io makes sense if you're looking for a completely free solution.
When to Choose Mermaid
Mermaid is worth considering if you need a free tool.
Who Should Use What?
Bootstrapped or small team?
When every dollar counts, draw.io lets you get started without pulling out your credit card.
We'd pick: draw.io
Growing fast?
Your team doubled last quarter and you need tools that won't break when you add 50 more people. Mermaid is built for teams that are leveling up.
We'd pick: Mermaid
Enterprise with complex needs?
You need SSO, compliance certifications, and a support team that picks up the phone. Both have enterprise tiers—compare their security features.
We'd pick: draw.io
Still not sure? Answer these 3 questions
How much can you spend?
Nothing at all? draw.io is completely free.
Do you care what other users think?
Both have similar review counts. Read a few before you commit.
Expert opinion or crowd wisdom?
Our team rated draw.io higher (86/100). But the community has upvoted Mermaid more (0 votes). Pick your source of truth.
Key Takeaways
What draw.io Does Better
- Our recommendation for most use cases
Consider Mermaid If
- You need a completely free solution
- Its specific features better match your workflow
- You prefer its interface or design approach
The Bottom Line
If we had to pick one, we'd go with draw.io (86/100). But the honest answer is that "better" depends on your situation. draw.io scores higher in our analysis, but Mermaid might be the right choice if its specific strengths align with what you need most. Take advantage of free trials to test both before committing.
Frequently Asked Questions
Is draw.io or Mermaid better?
Based on our analysis, draw.io scores higher with 86/100. draw.io isfree while Mermaid is free. The best choice depends on your specific needs and budget. We recommend testing both with free trials if available.
Can I switch from draw.io to Mermaid easily?
Migration difficulty varies. Check if both tools support data export/import in compatible formats. Some tools offer migration assistance or have integration partners who can help with the transition.
Do draw.io and Mermaid offer free trials?
Most software in this category offers free trials or free tiers. draw.io is completely free.Mermaid is completely free. Visit their websites for current trial offers.