Diagrams.net vs Lucidchart: Which is Better in 2026?
Choosing between Diagrams.net and Lucidchart 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: Lucidchart is our overall pick for diagramming workflows. Pick Diagrams.net if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Diagrams.net
Free, secure diagramming for flowcharts, UML, and more
Best for you if:
- • You need something completely free
- • Free, open-source diagramming tool for flowcharts, UML, ERD, network diagrams, and more
- • No login required, works in browser or as a desktop app with flexible storage options
Lucidchart
Create and collaborate on any diagram, from flowcharts to technical designs
Best for you if:
- • Cloud-based diagramming tool for flowcharts, org charts, and technical diagrams.
- • Features real-time collaboration, Visio import/export, and enterprise integrations.
| At a Glance |  Diagrams.net |  Lucidchart |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Diagramming | Diagramming |
Rating | 3.6/5 | 4.5/5 |
Choose Diagrams.net or Lucidchart?
Choose Diagrams.net if
Free, secure diagramming for flowcharts, UML, and more
- Completely free for individual use with no feature restrictions
- No account or login required, instant access via browser
- Open-source with transparent security and self-hosting option
- You want a fully free tool (Lucidchart requires payment)
Choose Lucidchart if
Create and collaborate on any diagram, from flowcharts to technical designs
- Professional diagrams
- Real-time collaboration
- Templates library
| Feature | Diagrams.net | Lucidchart |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | ★3.6/5 243 reviews | ★4.5/5 10,674 reviews |
| Categories | DiagrammingProductivity | DiagrammingProductivity |
In-Depth Analysis
Diagrams.net
Free, secure diagramming for flowcharts, UML, and more
Strengths
- +Completely free for individual use with no feature restrictions
- +No account or login required, instant access via browser
- +Open-source with transparent security and self-hosting option
- +Files stored in your own cloud or locally, no vendor lock-in
- +Broad diagram type support from flowcharts to cloud architecture
Weaknesses
- -Atlassian integration (Confluence/Jira) requires a paid license
- -UI feels utilitarian compared to polished competitors like Lucidchart or Miro
- -Real-time collaboration is newer and less mature than dedicated whiteboard tools
- -No built-in presentation mode or slide deck export
- -Limited template gallery compared to commercial diagramming tools
Key features
Lucidchart
Create and collaborate on any diagram, from flowcharts to technical designs
Strengths
- +Professional diagrams
- +Real-time collaboration
- +Templates library
Weaknesses
- -Limited free tier
- -Can be slow
Key features
Pricing: Diagrams.net vs Lucidchart
| Plan | Diagrams.net | Lucidchart |
|---|---|---|
| Tier 1 | N/A | Free Free |
| Tier 2 | N/A | $9 Individual |
| Tier 3 | N/A | $9 Team |
Pricing verified from each vendor's public pricing page. Compare in detail on Diagrams.net pricing and Lucidchart pricing.
Who Should Use What?
On a budget?
Diagrams.net is free. Lucidchart is freemium.
Go with: Diagrams.net
Want the highest-rated option?
Diagrams.net: 3.6/5 (243 reviews). Lucidchart: 4.5/5 (10,674 reviews).
Go with: Lucidchart
Value user reviews?
Diagrams.net: 243 reviews (3.6/5). Lucidchart: 10,674 reviews (4.5/5).
Go with: Lucidchart
3 Questions to Help You Decide
What's your budget?
Diagrams.net is free. Lucidchart is freemium. Go with Diagrams.net if free matters most.
What's your use case?
Both are diagramming tools. Compare their specific features to decide.
How important are ratings?
Lucidchart is rated higher: 4.5/5 vs 3.6/5.
Key Takeaways
Lucidchart
- Higher user rating: 4.5/5 vs 3.6/5
- Larger review base (10,674 reviews)
- Free tier available
- Our pick for this comparison
Diagrams.net
- Completely free
The Bottom Line
Lucidchart is our pick. That said, Diagrams.net is free, hard to beat on price.
Frequently Asked Questions
Is Diagrams.net or Lucidchart better?
Lucidchart is rated in our evaluation. Diagrams.net is free and Lucidchart is freemium.
What are Diagrams.net and Lucidchart used for?
Diagrams.net: Free, secure diagramming for flowcharts, UML, and more. Lucidchart: Create and collaborate on any diagram, from flowcharts to technical designs.
What does Diagrams.net cost vs Lucidchart?
Diagrams.net is completely free. Lucidchart is freemium (free tier + paid plans). Visit their websites for detailed pricing.