
draw.io
yEd
LucidChart
OmniGraffle
Dia
StarUML
UMLGraph
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.

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Which is more popular?
Based on our record, PlantUML seems to be more popular. It has been mentioned 16 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | plantuml.com | cloudploy.com |
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| Company | Startup from France | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of PlantUML yet.
Add an API key. Your agent deploys from Claude Code, Cursor, or any MCP client. Bring your own Ubuntu/AWS server or provision Hetzner/DigitalOcean/AWS at cost. Flat plan for the control plane; compute at the provider’s rate. Free forever: 1 small server, 1 app.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
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Walkthroughs and reviews on video.
PlantUML - beautiful quick diagrams to explain your models
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PlantUML and CloudPloy. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


PlantUML is a tool that allows you to write diagrams such as sequence, object, component, usecase, class diagrams and more.
PlantUML is an open source tool and syntax that allows you to make sequence, use case, class, object, and other diagrams from code. It also supports non-UML diagrams like JSON and YAML. In addition, it enjoys support...
For C4 Models, Mermaid support is still experimental. This shows as you have little control over the way the diagram is rendered, and some parts are unreadable (i.e., arrows over nodes). PlantUML works as you would...
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Recommendations tracked on public social media and blogs since March 2021.


PlantUML — UML (class, sequence, use case, activity), C4 architecture, network diagrams, wireframes, JSON/YAML visualization. - Source: dev.to / 8 months ago
Diagram as code is the practice of defining diagrams in text instead of drawing them manually in a visual editor. Tools like Mermaid, D2, and PlantUML all fit this model. - Source: dev.to / 6 months ago
Once all the important tech is in-place to enable software delivery, the necessary augmentation is what comes next. Documentation is a non-negotiable demand of the craft, and tools like PlantUML and Mermaid have enabled maintenance of... - Source: dev.to / about 1 year ago
Tracking CloudPloy since Sep 2026.
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yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.
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LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
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OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.
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Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.
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