When comparing PlantUml vs Gravizo, the Slant community recommends PlantUml for most people. In the question“What is the fastest way to create and edit UML diagrams?” PlantUml is ranked 1st while Gravizo is ranked 10th. The most important reason people chose PlantUml is:
For example from Emacs, Sublime Text and so on. You can learn about integrations [here](http://plantuml.com/running).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Many, many integrations
For example from Emacs, Sublime Text and so on. You can learn about integrations here.
Pro Easy create diagrams from text
There is even a Visual Basic Macro to draw UML diagrams in Word.
Pro Free/libre/open source (GPL)
Source code can be browsed here.
Pro Has online editors
Such as.
Pro sphinx-contrib extension for embedding into docs
sphinx-contrib extension on PyPi
Allows you to keep your UML definitions under VCS and include them inside generated documentation with ease.
Pro Markdown syntax
Can be used on GitHub using Markdown image tag.
Pro URL
You can use an URL which will be rendered by Gravizo and include it in your website or blog.
Cons
Con The "plantUML-language" is a bit strange and hard to grasp for new people
Con Slow development due to it being mostly a one-man project
There’s been no recent contribution to the source forge project but from the administrator arnaud_roques. Future contribution might be difficult due to lacking code documentation.
Con Not maintained
Con Online only
No applications for local use in the free version.
