Online Class Diagram Maker

A class diagram is a visual representation of your software's basic architecture. It shows all the basic building blocks, their attributes, operations, and relationships between them.

SmartDraw can help you make a class diagram automatically using a local repository or a repo on Github.

The class diagram extension will work with C#, C, Java, JavaScript, Ruby and Python.

To build a class diagram, all you have to do is launch the Smartdraw's Automatic Class Diagram extension and point it at your repository.

Load your source code and choose which files you want to include in your diagram. Click "Build Diagram" and you're done. It's that easy.

No need to build diagrams by hand when SmartDraw does it for you.

The class diagram generated is fully editable. You can add new shapes to it or modify its properties. Clicking on the "info" icon will show you the description for each method and the the hyperlink links to the specific line in the sourcecode. It's a really useful way of getting a handle on the basic structure of your project.

You and your team can work on the same class diagram by sharing it on your included online account or by using your favorite file sharing apps like Dropbox^®, Google Drive^®, Box^® or OneDrive^®. You can also share files with non SmartDraw users by simply emailing them a link.

You can simply share your class diagram in a variety of common graphics formats such as a PDF or PNG.

You can also export your class diagram to any Office^® or G Suite^® application in just a few easy clicks.

SmartDraw also has apps to integrate with Atlassian's Confluence, Jira, and Trello. You can easily make a class diagram and share it in your Confluence documentation or attach a use case diagram to a Jira issue.