Install "UML Elements" Extension on LibreOffice

This section provides a tutorial on how to download and install LibreOffice on macOS computers.

LibreOffice does not have built-in drawing elements for UML diagrams. But you can install the "UML Elements" extension to provide you UML drawing elements.

Here is what I did to install the "UML Elements" extension on LibreOffice:

1. Go to LibreOffice extension website at

2. Enter "UML" and click "Search". I see "UML Elements" listed in the search result.

3. Click "UML Elements". I see the "UML Elements" extension page.

4. Click "Download Latest" and save the extension file "UML_Elements-2.0.0.oxt" in the Downloads directory.

5. Run LibreOffice and click "Tools > Extension Manager" menu. I see the "Extension Manager" window.

6. Click "Add" and select "UML_Elements-2.0.0.oxt" in the Downloads directory. I see "UML Elements 2.0.0" extension added.

LibreOffice Extension - UML Elements
LibreOffice Extension - UML Elements

Table of Contents

 About This UML Tutorial Book

 Introduction of UML (Unified Model Language)

 UML Class Diagram and Notations

 UML Activity Diagram and Notations

 UML Sequence Diagram and Notations

 UML State Machine Diagram and Notations

 UML Use Case Diagram and Notations

LibreOffice Drawing Extension - UML Elements

 Install LibreOffice on macOS Computer

Install "UML Elements" Extension on LibreOffice

 Activity Diagram with LibreOffice UML Elements

 MS Visio 2010 - UML Drawing Tool


 Full Version in PDF/EPUB