How to build project-wide UML diagram in IntelliJ IDEA?

Question

Trying to reverse-engineer existing project and it would be of great help to see how classes collaborate/depend on each other. Is there a way to build project-wide UML diagram (or class diagram of any kind) in IntelliJ IDEA using build-in functionallity or using some free plugin?

Note: Diagrams > Show Diagram feature is not available in the free Community Edition — Andrejs, Apr 16 '16 at 18:44

score 51 · Accepted Answer · edited Jul 03 '23 at 01:22

51

Right click on your package no matter which. Click Diagrams > Show Diagram (Ctrl+Alt+Shift+U). You will see your package in diagram editor.

Now:

You can expand (E) or collapse (C) all nodes.
You can show dependencies
You can show many attributes of nodes (constructors, methods, properties...)
You can drag&drop other packages from project explorer.

So, play with it a bit and I think you will achieve what you need.

This is how it could look like: enter image description here

edited Jul 03 '23 at 01:22

Pang

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answered Nov 29 '13 at 10:21

Milan Baran

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Thank you a lot. I was confused how to expand nodes, now I see! – Denis Kulagin Nov 29 '13 at 11:27
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Does anyone know, how to add this feature to Android Studio? – X-HuMan Sep 25 '15 at 09:10
8

i cannot see `Diagrams` option on right clicking my packages, i have idea 2016.1.1 CE – Zavael Apr 21 '16 at 06:51
Does you project support maven? Does it contain pom.xml? Then right click on your module or inside opened pom.xml file and you should see `Diagrams` in the menu. – Milan Baran Apr 21 '16 at 15:47
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@Zavael This feature is only available for Ultimate edition. – Vigneshwaran Sep 28 '16 at 06:50
I didn't see Expend and dependency? – Weijing Jay Lin Jul 01 '18 at 23:57
How do you export this as an Image, i am getting an error: too large for export. I want to render this in gliffy in confluence. any clues? – dresh Mar 27 '20 at 13:03

How to build project-wide UML diagram in IntelliJ IDEA?

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