
draw.io
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PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.

JSON Formatter & Validator
DevTools Advanced
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SmallDevTools
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FOSS tools for developers

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 | developertools.tech |
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| Company | Startup from France | — |
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Why this product is good
Recommended for
Overall verdict
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Walkthroughs and reviews on video.
PlantUML - beautiful quick diagrams to explain your models
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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 DeveloperTools.Tech since Apr 2023.
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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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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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